the kruskal-wallis test is considered a robust test for the comparison of group means because ______

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Answer 1

The Kruskal-Wallis test is considered a robust test for the comparison of group means because it does not assume that the data is normally distributed, unlike other traditional tests such as the t-test or ANOVA.

Instead, it is a nonparametric test that compares the medians of the groups, making it suitable for data that is not normally distributed or contains outliers.


The Kruskal-Wallis test is also robust in the sense that it can handle unequal sample sizes and variances across groups, as long as the data meets the assumption of independence and random sampling. It can be used to compare three or more groups, making it a useful tool in research where multiple treatments or interventions are being evaluated.


Another advantage of the Kruskal-Wallis test is that it is easy to interpret and communicate to non-statistical audiences, as it provides a single p-value that indicates whether there is a significant difference between the groups or not.


Overall, the Kruskal-Wallis test is a robust and versatile statistical tool that can be used to compare group means in a variety of research settings, making it an essential tool in statistical analysis.

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Related Questions

Which sector of the economy was best represented among the top five spenders in 2016?

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Health care sector of the economy was among the top five splendors in 2016.

All enterprises involved in the provision and coordination of medical and associated goods and services are included in the healthcare industry.

This industry has some substantial benefits in the United States, but it is also plagued by a number of variables that pose potential economic concerns.

The healthcare sector in the United States provides for a disproportionate percentage of spending in relation to health results, raising concerns about politically motivated industry change.

The healthcare industry is one of the largest and most complicated in the American economy, accounting for 18% of GDP in 2020. In 2016, health-care spending in the United States climbed by 4.3 percent to $3.3 trillion, or $10,348 per person.

Therefore, the answer is healthcare sector.

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What are cost drivers for airlines?

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Labor and fuel are the cost drivers of airlines.

A cost driver is a variable that causes a change in costs when the cost driver changes. In other words, it is a variable that influences the expenditures of the  organization.

A cost driver is the immediate cause of a company expenditure. A cost driver is any activity that causes the cost of anything else to increase. As an example, the volume of water at the workplace uses in a month influences the cost of the water bill. The cost drivers are water units, and the cost is the water bill.

Therefore, the answer is labor and fuel  since when the prices of these are changes the cost also changes.

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Population estimates show that by the year 2030, nearly 72 million of the population in the united states will come from which group?

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Population estimates show that by the year 2030, nearly 72 million of the population in the united states will come from old age group. We are now able to spend 20 to 25 percent of our lives in active retirement hanks to the enormous increases in both numbers and proportions, longer life expectancies, and active lifestyles.

According to the UN Population Division, by 2035, 1 in 5 persons will be 65 or older. Furthermore, the younger generations of today anticipate that the older population of the future will be better educated, healthier, culturally savvy, and, as people, more discerning consumers.

As their physical and sensory abilities start to deteriorate, they will demand—and respond to—goods and services that enable them to continue their active lifestyles and activities. Examples include flexible scheduling, ongoing education, travel, engaging experiences, and opportunities for companionship.

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As parturition nears, the levels of progesterone ______ and the levels of estrogen ______.
a. decrease; increase.b. increase; decrease.c. decrease; decrease.d. increase; increase.

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As parturition nears, the levels of progesterone  decrease; and the levels of estrogen increase.

Progesterone helps regulate your cycle. But its main job is to prepare the uterus for pregnancy. After ovulation, progesterone thickens the lining of the uterus in preparation for a fertilized egg. . When there are no more fertilized eggs, progesterone levels drop and menstruation begins.

Progesterone is a hormone that stimulates and regulates vital functions, plays a role in maintaining pregnancy, prepares the body for conception, and regulates the monthly menstrual cycle.

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Wu Company incurred $40,000 of fixed cost and $50,000 of variable cost when 4,000 units of product were made and sold. If the company's volume doubles, the total cost per unit will:

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Wu Company incurred $40,000 of fixed cost and $50,000 of variable cost when 4,000 units of product were made and sold. If the company's volume doubles, the total cost per unit will decrease

The cost per unit formula includes the sum of fixed and variable costs, which is divided by the total number of units manufactured during the period. To find the unit cost: Unit cost = (total fixed cost + total variable cost) / total production unit

The unit cost is higher than the cost of producing a single unit of the product. It also represents your break-even point, or the minimum value you must sell an item before you can start making a profit.

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A customer, age 52, has a 20 year investment time horizon, s moderate risk tolerance, and is looking for investments that provide both incom and growth. The best recommendation would be

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A 52-year-old customer is looking for investments that would generate income and growth over a 20-year investment horizon and with a moderate risk tolerance. The ideal suggestion would be the best option available is large-cap growth stocks. Large-capitalization equities provide both long-term growth potential and dividend payments, satisfying the needs of their customers.

Large-capitalization equities

The shares of companies with a market value of $10 billion or more are referred to as large cap stocks or big caps. As investors gravitate toward quality and stability and become more risk-averse during choppy markets, large-cap equities tend to be less volatile. With a market value of more than $10 billion, a corporation is considered large-cap. The market capitalization of a small-cap company is less than $2 billion, whereas that of a mid-cap corporation is from $2 billion to $10 billion.

Large-cap firms typically have stronger access to the capital markets as well as a broader market issuing experience. The highest trading liquidity is typically found in large-cap stocks.

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The ________ takes into account such costs as deteriorated customer relations and lost sales

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The Full cost view of maintenance takes into account such costs as deteriorated customer relations and lost sales.

a cost that an employer has when they employ someone, in addition to the cost of paying the person's salary or wages. cost is the amount or equivalent paid or charged for something .

Examples of costs are rent and lease costs, salaries, utility bills, insurance, and loan repayments.

Direct, indirect, fixed, and variable are the 4 main kinds of cost.

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TechSmart employees receive annual pay raises and stock allocations on the basis of performance evaluations that assess individual achievement of goals. TechSmart managers are implementing ________ justice

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TechSmart managers are implementing distributive justice.

What is distributive justice?

Employees experience distributive justice when they think that results are fair. These results can be measurable, like pay, or intangible, like appreciative remarks. In the event that staff members feel fairly compensated or handled, distributive justice is achieved. When equal effort does not result in equal rewards or when a person or group obtains an excessive amount of goods, distributive justice is lacking.

When equals enjoy the same distribution of benefits, distributive justice has unquestionably been attained. In a constitutional democracy, governmental policies that guarantee social security or healthcare to all retirees and the old are examples of distributive justice.

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Taxes on employee wages to fund Social Security apply to all earnings up to ________. Group of answer choices $63,700 $46,500 $117,000 $128,400

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Taxes on employee wages to fund Social Security applies to all earnings up to $117,000.

In 2022, if you work, approximately 85 cents of Social Security taxes will go to a trust fund to provide monthly benefits to current retirees and their families, as well as spouses and children of deceased workers. be paid.

Employer will give Social Security a copy of her W-2 Income Statement when giving a copy of the income tax return. Keep track of your earnings with these employer reports

In addition to hospitalization and medical benefits, most employers offer group life insurance. Employees typically get lower rates on group plans. Group plans also typically accept all employees, including new hires and non-probationary employees, regardless of health or physical condition.

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All of the following are true about health insurance except:

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The option that's not true about health insurance is that A. People with health insurance can skip lines in emergency rooms.

What is health insurance?

It should be noted that health insurance is a contract that requires a company to pay healthcare costs in exchange for a premium.

In this case, the option that's not true about health insurance is people with health insurance can skip lines in emergency rooms.

In conclusion, the correct option is A.

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Complete question:

All of the following are true about health insurance except:

a. People with health insurance can skip lines in emergency rooms

b. Health insurance protects you financially from medical emergencies.

c. Health insurance lowers your risk of acquiring medical debt.

d. Health insurance allows some medical procedures to be covered by a low-cost co-pay.

Bonds Payable has a balance of $900,000 and Premium on Bonds Payable has a balance of $10,000. If the issuing corporation redeems the bonds at 103, what is the amount of gain or loss on redemption

Answers

Based on the balance of Bonds Payable and Premium on Bonds, the amount of loss on redemption is $17,000.

How much does the company gain or lose on redemption?

The cash the company paid is:

= 900,000 x 103/100

= $927,000

The gain (loss) on redemption is:

= Bond carrying value - Cash paid

= (900,000 + 10,000) - 927,000

= -$17,000

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Floridation of drinking water helped to reduce water-borne infections like cholera and typhoid in the United States. True False

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It is false that Floridation of drinking water helped to reduce water-borne infections like cholera and typhoid in the United States

What is Floridation?

Water fluoridation is a form of water treatment which helps prevent some ailments.

Florine is good for bones and teeth and therefore the additional of recommended quantity to water helps prevent tooth decaying.

It can be added to public water from help increase flourine contents.

Flourine does not work for bacteria and other infection.

Therefore, It is false that Floridation of drinking water helped to reduce water-borne infections like cholera and typhoid in the United States

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Answer: FALSE

Explanation:

Fluoridation helps to prevent tooth decay but it does not work for bacteria and other infection.

Water fluoridation is the process of adding fluoride to the water supply so the level reaches approximately 0.7 ppm, or 0.7 milligrams of fluoride per liter of water; this is the optimal level for preventing tooth decay

Which of the following is NOT one of a wholesaler's channel functions? Group of answer choices off-price retailing financing risk bearing bulk breaking transportation

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D) category killers are not one of a wholesaler's channel functions.

Category killer is a big everything-in-one save that dominates a product category. it's a serious competitor for different smaller stores as it generally has a wide selection of merchandise and lower expenses. Its market penetration, pricing, and product collection offer such huge-container shops a competitive benefit.

A completely famous or a successful product, keep, and many others., that dominates the competition in a specific category Their approach brought seek consequences that creamed the competition's, and it served them up in an easy, quick-loading, no-frills format.

We keep our taxonomy of regulation companies with a term i've borrowed shamelessly from the retail enterprise, “category Killers.” In retail, these have traditionally been huge container shops with exhaustive stock and wickedly aggressive fees on one deep “vertical” class of merchandise: domestic Depot and Lowe's.

The question is incomplete. Please read below to find the missing content.

Which of the following is NOT one of the main types of off-price retailers?

A) independents

B) factory outlets

C) warehouse clubs

D) category killers

E) membership warehouses

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What insights does the cash flow statement provide about the company’s performance in relation to other financial statements?

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The cash flow statement provides detailed insights into how a company used its cash during an accounting period. It shows the sources of cash flow and different areas where money was spent, categorized into operations, investing, and financing activities.

A cash flow statement, also known as a statement of cash flows, is a financial statement used in financial accounting that breaks down the analysis into operating, investing, and financing activities. It illustrates how changes in balance sheet accounts and income effect cash and cash equivalents.

A cash flow statement is a type of financial statement that gives total information about all of the cash inflows a business makes from continuing activities and outside investment sources. It also includes any cash outflows made within a specific time period to cover investments and business expenses.

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A cash flow statement provides detailed insight into how a company used cash during an accounting period. It shows the sources of cash flow and the different areas where the money was spent, broken down into operating, investing, and financing activities.

The purpose of a cash flow statement is to provide a detailed picture of what happened to a company's cash during a specific period called an accounting period. It indicates an organization's ability to operate in the short and long term based on the amount of money going in and out of the business.

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Projects should always be discounted at the firm's overall cost of capital.

a. True
b. False

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The statement, projects should always be discounted at the firm's overall cost of capital is false.

If overall cost of capital is used by a firm in order to discount cash flows from higher risk projects, in the future it will not be beneficial for a firm as the firm will accept too many high-risk.

A high weighted average cost of capital typically signals higher risk which is associated with a firm's operations because the company is paying more for the capital that investors have put into the company.

It is researched that, as the risk of an investment increases, investors demand an additional return to neutralize the additional risk.

Hence, the projects should not always be discounted at the firm's overall cost of capital.

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Unless special conditions have been agreed upon, there is usually no management influence in:____.

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Unless special conditions have been agreed upon, there is generally no management influence on debt financing.

What is Debt Financing?

Corresponds to the issuance of an organization's shares, such as its bonds, notes and fixed income products, with the aim of raising money. Generally, in this type of debt, the creditors will receive shares that will give them an equity share in the company's future earnings.

Financing debt is also used as a strategy to drive the company's growth.

Therefore, financing debt is not influenced by management, but by the financial gains that a company will have in a given period.

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A contract between businesses in two different countries falls under Blank______ international law, while disputes between two countries over trade subsidies falls under Blank______ international law.

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A contract between businesses in two different countries falls under private international law, while disputes between two countries over trade subsidies falls under public international law.

The body of laws, norms, and standards generally accepted as obligatory between nations is known as international law, sometimes known as public international law, the law of nations, and international ethics.Both civil (also known as Roman) and common law systems can be regarded as the most prevalent in the globe. Civil law is the most prevalent in terms of both population and landmass, whereas common law is used by the most people out of all civil law systems.

What is a country's legal system ?

The method for making, interpreting, and upholding the laws in a given territory is the legal system of a nation.

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The inventory valuation method that identifies the invoice cost of each item in ending inventory to determine the cost assigned to that inventory is the: Group of answer choices First-in, first-out method. Weighted average inventory method. Specific identification method. Last-in, first-out method. Cost accounting method.

Answers

First-in, first-out method

it is the inventory valuation method that identifies the invoice cost of each item in ending inventory to determine the cost assigned to that inventory

What is First in first out method ?

The first in, first out (FIFO) method of inventory valuation is a cost flow assumption that the first goods purchased are also the first goods sold.

In most companies, this assumption closely matches the actual flow of goods, and so is considered the most theoretically correct inventory valuation method.

Imagine if a company purchased 100 items for $10 each, then later purchased 100 more items for $15 each. Then, the company sold 60 items. Under the FIFO method, the cost of goods sold for each of the 60 items is $10/unit because the first goods purchased are the first goods sold.

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All of the following are considered phases of the management process except ________. planning directing controlling executing

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All of the following are considered phases of the management process except executing.

What does management process include?

Because it completes a number of tasks, such as planning, organizing, staffing, leading, and controlling in a particular order, management is a process.

Planning, organizing, leading, and regulating are the four main tasks that managers must complete as part of the management process. Understanding that the management process is not always linear is crucial.

Planning, organizing, staffing, leading, and managing are the five general responsibilities that make up management at its most basic level. These five responsibilities are a part of a corpus of guidelines and management-related beliefs.

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A short-run aggregate supply curve shows fixed _____, and a long-run aggregate supply curve shows fixed _____.

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A short-run aggregate supply curve shows fixed prices, and a long-run aggregate supply curve shows fixed output.

What is aggregate supply curve?

Aggregate supply curve can be defined as the supply curve that shows the amount of product or goods and services a company produces and intend to sell at a particular price during a specific or particular period of time.

Hence, A short-run aggregate supply curve  tend to shows  or display fixed prices, and on the other hand   long-run aggregate supply curve tend to shows fixed output.

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As production workers become better organized and more familiar with equipment, the average cost per unit tends to decrease with the ________. Group of answer choices increase in the diseconomies of scale increase in derived demand decrease in the economies of scale increase in primary demand accumulated production experience

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As production workers become better organized and more familiar with equipment, the average cost per unit tends to decrease with the accumulated  production experience.

What is Accumulated production?

It refers to the gain a company experiences in producing a product over a period of time. Workers learn shortcuts, materials flow more smoothly, and procurement costs fall. The result is that average cost falls with accumulated production experience. This decline in the average cost with accumulated production experience is called the experience curve or learning curve.

Considering accumulated production experience, the decrease in average cost is classified as:

experience curve.learning curve.

Therefore, we can conclude that the correct option is accumulated  production experience.

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Bella and John are getting married in two months. They pay the company, Wonderful Weddings, to coordinate and plan their wedding. In the context of marketing, this scenario best illustrates a(n)

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An exchange in marketing is illustrated when Bella & John pays the company known as Wonderful Weddings to coordinate and plan their wedding.

What is an exchange in marketing?

In marketing, this refers to the process whereby an individual or organisation decides to satisfy a need or want by offering some money or goods to the party to satisfy such want or need.

An exchange is normally supposed to produce an utility in the marketing context because it refers to the value of what you trade which is less than the value of what you receive from the trade.

The types of exchange in marketing are:

Restricted Exchanges Generalized ExchangesComplex Exchanges

The concept of an exchange happens, when both parties have to have something of value for each other.

Hence, an exchange in marketing is illustrated when Bella & John pays the company known as Wonderful Weddings to coordinate and plan their wedding.

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It can be expensive or impossible to measure everything in a population so businesses often take a?

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Estimates is the correct answer A business estimate is a document that details how much you intend to charge a customer for a product or service. It breaks down costs line by line ( example, each cost for drywall installation) so customers understand where  total comes from.

Design, bid, and control cost estimates are the three types of cost estimates. Design estimates are prepared as part of the project preliminaries and provide an estimate of the project cost. Bid are used during the project's tendering phase to detail project overheads and other indirect costs. (example, each cost for drywall installation).

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Which activity is set by policy at the start of a project?

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The activity which is set by policy at the start of a project is the detailed project planning.

At the start of a project, the first planning activity is to define project activities, using a Work Breakdown Structure. The purpose of this activity is to establish a common understanding of project scope, it also includes determining and answer and to begin the detailed project planning.

The detailed project planning is necessary as it makes a project valuable and accurate. There are five phases of project planning and management which includes conception and initiation, planning, execution, performance or monitoring, and project end.

Hence, the activity which is set by policy at the start of a project is the detailed project planning.

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The two most basic inventory questions answered by the typical inventory model are:.

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The two most basic inventory questions answered by the typical inventory model are order time and order quantity.

What is the Inventory model?

Corresponds to a metric that organizations use to control stock, determining the level needed to effectively meet production, raw materials and order demands, in order to identify how much stock is necessary for the flow of organizational processes occur optimally.

Therefore, it is essential that inventory management is analyzed, organized, controlled and reviewed in accordance with organizational objectives and goals.

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Solaris, Inc. has 2000 shares of 5%, $10 par value, cumulative preferred stock and 50000 shares of $1 par value common stock outstanding at December 31, 2020. What is the annual dividend on the preferred stock

Answers

The annual dividend on the preferred stock is $1000 in total.

What is an Annual dividend?An annual dividend is a payment made by an insurance firm to its policyholders each year in the insurance sector. Annual dividends are most frequently given out in combination with plans that provide long-term disability insurance and permanent life insurance. A payment made annually to an insurance policyholder, frequently under a long-term disability or permanent life insurance policy, is known as an annual dividend. The insurance company's income, the success of investments, and the amount of money invested all affect the dividend amount.

Annual profits may be paid as cash, used to pay for further insurance, or added to premiums to lower future total payments.

The company has 2000 shares of 5% that is: (2000*5)/100 = 100

with a par value of $10, which becomes:

100*$10 = $1000.

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To evaluate _____, a systems analyst needs information about projected future volume for all outputs, inputs, and processes.

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To evaluate Scalability, a systems analyst needs information about projected future volume for all outputs, inputs, and processes.

Systems analyst uses analysis and design techniques in order to solve business problems using information technology. Apart from that they identify what improvements the organization they work for needs, and so they design systems to implement those changes.

System analysts also evaluate Scalability. Scalability is referred to as the measure of a system's ability to increase or decrease in performance and cost in response to changes in application and system processing demands.

Hence, in order to evaluate scalability, a systems analyst requires information about projected future volume for all outputs, inputs, and processes.

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Niren Co. made modifications to a manufacturing machine that increased its productivity by 40%. Niren would classify this expense as a(n):

Answers

Niren would classify this expense as a Capital Expense.

The book value of this van at the end of the second year would be ($25000 - $4000 - $4000)

$ 17000.

Capital spending, or capital spending, is the money an organization or company spends to buy, maintain, or improve fixed assets such as buildings, vehicles, equipment, and land.

Capital spending is the issuance of money, the use of collateral, and the purchase of new assets, the strengthening of existing assets, in the hope that a company will make a profit of one tax year or more. Occurs when you are in debt. Simply put, it represents an investment in a business.

Capital spending, also known as capital spending, includes the purchase of new equipment, machinery, land, factories, buildings or warehouses, furniture and fixtures, commercial vehicles and other items. , Software, or intangible assets such as patents and licenses.

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Assume that projects alpha and beta are mutually exclusive. the correct investment decision and the best rational for that decision is to?

Answers

The best rational decision is to invest in project Beta, since NPV Beta > NPV Alpha

What is the best rational decision?

Net present value is the present value of after-tax cash flows from an investment less the amount invested. Only projects with a positive NPV should be accepted. A project with a negative NPV should not be chosen because it isn't profitable.

When choosing between positive NPV projects, choose the project with the higher NPV first because it is more profitable.

NPV can be calculated using a financial calculator

NPV calculation for project alpha:

Cash flow in year 0 = -79

Cash flow in year 1 = 20

Cash flow in year 2 = 25

Cash flow in year 3 = 30

Cash flow in year 4 = 35

Cash flow in year 5 = 40

I = 17 %

NPV =$12.01

NPV calculation for project beta:

Cash flow in year 0 = -80

Cash flow from year 1 to 7 = 25

I  = 14%

NPV = 27.21

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Prashanthi doesn’t keep good financial records. How will this likely affect her investment income?

Answers

Prashanthi doesn’t keep good financial records,  She will not be aware of whether or not she has to sell a stock or purchase more shares. This is further explained below.

What are financial records.?

Generally, Documents known as financial records are those that either give proof of company transactions or summarize them. An important component of every accounting department is a collection of financial data that have been meticulously structured. Invoices and receipts are two types of documents that may be included in the most precise level of financial records.

The three most common types of investment income are interest, dividends, and capital gains. Investment income is defined as money produced by financial assets or financial accounts. Interest is paid on bonds, dividends are paid on stocks, and capital gains, which are another term for profits, may be made from any investment.

In conclusion, Due to the fact that Prashanthi does not maintain accurate financial records, she will be unaware of whether or not it is necessary for her to sell a stock or buy additional shares.

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Other Questions
the idea that the recovery from the depression of 1920-1921 would require hard work, saving and forgoing needless spending was the view of:a. President Harding.b. President Wilson.c. President Hoover.d. President Coolidge.e. President Roosevelt. Which cross could produce a child with Type B blood? investing in two assets with a correlation coefficient of -.5 will reduce what kind of risk? investing in two assets with a correlation coefficient of -5 will reduce whihc kind of risk? A technique is set at 20 mA, 100 ms and produces 300 mR intensity. Find the new time (ms) if the current is doubled and the intensity is constant A marketing analyst wants to examine the relationship between sales (in $1,000s) and advertising (in $100s) for firms in the food and beverage industry and collects monthly data for 25 firms. He estimates the model:Sales = 0 + 1 Advertising + . The following ANOVA table shows a portion of the regression results.dfSSMSFRegression178.4378.433.58Residual23503.7621.9Total24582.19CoefficientsStandard Errort-statp-valueIntercept39.414.142.7860.0045Advertising2.891.691.710.059Which of the following is the coefficient of determination? The following data was input into a spreadsheet program to determine the Intercept, Slope and R2 (RSQ) for Patient Days and Maintenance Costs for a local hospital:Month Patent Days (X) Maintenance Costs (Y)January 3,300 $4,450February 4,050 $4,750March 3,000 $4,200April 3,750 $4,600May 4,150 $5,050June 4,500 $5,400July 2,600 $4,400Intercept $2,734Slope $0.541RSQ 0.793The estimated variable maintenance cost per patient day for the hospital isSelect one:A. $5,468B. $0.541C. $2,734 We would expect:___________A. the demand for Coca-Cola to be less elastic than the demandfor soft drinks in general.B. the demand for Coca-Cola to be more elastic than the demandfor soft drinks in general.C. no relationship between the elasticity of demand forCoca-Cola and the elasticity of demand for soft drinks ingeneral.D. none of these to hold true. if sample evidence is inconsistent with the null hypothesis, we ___ the null hypothesis. find the volume of each figure. round to the nearest tenth as needed. please show the work, will mark the brainliest. Oregon Forest Products will acquire new equipment that falls under the five-year MACRS category. The cost is $300,000. If the equipment is purchased, the following earnings before depreciation and taxes will be generated for the next six years. Use Table 12.12 Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods Earnings before Depreciation Year 1 $110,000 Year 2 120,000 75.000 Year 4 50,000 Year 5 56,00 Year 6 33, eee The firm is in a 35 percent tax bracket and has a 13 percent cost of capital. a. Calculate the net present value. (A negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places.) Net present value b. Under the net present value method, should Oregon Forest Products purchase the equipment asset? Yes No margaret is a new grandmother. if she is like other new grandmothers, what is her age? after millikan performed his oil drop experiment, he concluded that Quadrilateral RSTU is a rectangle, RT=a+34, and SU=2a. What is the value of a? Identify the complete redox reaction for a Pb/Pb2+ ||Ag* Ag cell. A. Pb(s) + Ag(s) Pb+ (aq) + Agt (aq) B. Pb(s) + Ag+ (aq) Pb2+ (aq) + Ag(s) c. Pb2+ (aq) + Ag(s) Pb(s) + Ag+ (aq) D. Pb(s) + 2 Ag" (aq) Pb2+ (aq) + 2 Ag(s) A student walks 50 m on a bearing 025 and then 200 m due east. How far is she from her starting point? dewey just won a $65 million lottery. according to the set-point theory of happiness, one year from now dewey will likely be: describe 4 skeletal traits (2 cranial and 2 skeletal-body) in detail that are unique to neanderthals. Use the given parameters to answer the following questions. x = 9 - t^2\\ y = t^3 - 12t(a) Find the points on the curve where the tangent is horizontal.(b) Find the points on the curve where the tangent is vertical. The table shows three situations in which the Doppler effect may arise. The first two columns indicate the velocities of the sound source and the observer, where the length of each arrow is proportional to the speed. For each situation, fill in the empty columns by deciding whether the wavelength of the sound and the frequency heard by the observer increase, decrease, or remain the same compared to the case when there is no Doppler effect. Provide a reason for each answer.Velocity of Sound Source (Toward the Observer)Velocity of Observer (Toward the Source)WavelengthFrequency Heard by Observer Velocity of Sound Source (Toward the Observer) Wavelength(a) 0 m/s 0 m/s(b) 0 m/s(c) The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed of sound is 343 m/s. (a) If the ambulance is stationary and you (the "observer") are sitting in a parked car, what is the wavelength of the sound and the frequency heard by you? (b) Suppose the ambulance is moving toward you at a speed of 26.8 m/s. Determine the wavelength of the sound and the frequency heard by you. (c) If the ambulance is moving toward you at a speed of 26.8 m/s and you are moving toward it at a speed of 14.0 m/s, find the wavelength of the sound and the frequency that you hear. place the method of choosing party presidential nominees in the correct order, from the one involving the least public input, to the one with the most.