To narrow the boundary around the mean (μ) for a 98 percent confidence interval to within 0.5 percent, approximately 424 soil samples should be included in the experiment.
The desired margin of error for the confidence interval is 0.5 percent. Since we want to estimate the mean (μ) of the percentage of contamination removed, we can use the formula for the margin of error in a confidence interval:
Margin of Error = Z * (Standard Deviation / √n)
Here, Z is the z-score corresponding to the desired level of confidence (98 percent), standard deviation is 1.5 percent, and n is the number of samples. To find the value of Z for a 98 percent confidence level, we can refer to a standard normal distribution table or use a statistical software. In this case, Z is approximately 2.33.
Substituting the known values into the formula, we have:
0.5 = 2.33 * (1.5 / √n)
Simplifying the equation, we get:
√n ≈ (2.33 * 1.5) / 0.5
√n ≈ 6.99
n ≈ 6.99² ≈ 48.9
Rounding up to the nearest whole number, we find that approximately 424 soil samples should be included in the experiment to narrow the confidence interval around the mean to within 0.5 percent.
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If you think a teacher is being tough on you, and you then decide to believe that he or she is trying to push you to do better because you have potential, you have engaged in
Answer:
??/
Explanation:
If you think a teacher is being tough on you, and you then decide to believe that he or she is trying to push you to do better because you have potential, you have engaged in cooperative and learning mode to achieve good grades.
What is cooperative learning?Encourage cooperation learning and mutual support by getting learners to study collaboratively. When learners study in a group, they share their ideas and knowledge to complete an assignment. Support from the peer group also helps to boost learners’ confidence.
Unlike learning in isolation where discouragement or a sense of hopelessness may set in, learning becomes more enjoyable when teacher and friends are able to help or motivate one another.
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Explain why the crossing of 2 hybrid parents only results in a 25% percent chance of having a child with blue eyes according to a punnett square.
Answer:
The crossing of two hybrid parents results in only a 25% chance of having a child with blue eyes, because the alleles responsible for blue eyes are resective and will only appear in resessive hom0zygosis.
Explanation:
Blue eyes are determined by recessive alleles, which will be represented by the letter "b" in the punnett square. As you may already know, recessive alleles are only expressed in the presence of another recessive allele, in a system called recessive hom0zygosis (bb). In a cross between hybrid parents, that is, with heterozygous (Bb) alleles, the chances of their children having blue eyes are very low and represent a 25% probability, as can be seen in the punnett squad shown below.
what mineral from he body is lost by excessive perspiration during strenuous physical activities?
Answer:
Sweating causes electrolytes losses of sodium and potassium, these minerals are easily replaced through proper nutrition.
Explanation:
I majored in Health
write an essay about physical fitness assessment
Answer:
Physical fitness!!!
Explanation:
Physical fitness is to the human body what fine tuning is to an engine. It enables us to perform up to our potential. Fitness can be described as a condition that helps us look, feel and do our best. More specifically, it is the "ability of the human body to function with vigor and alertness, without undue fatigue, and with ample energy to engage in leisure activities. (Physical)."
Physical fitness involves the performance of the heart and lungs, and the muscles of the body. And, since what we do with our bodies also affects what we can do with our minds, fitness influences to some degree qualities such as mental alertness and emotional stability.
Physical fitness is most easily understood by examining the four basic parts: Cardiorespiratory Endurance, muscular strength, muscular endurance and flexibility. Cardiorespiratory Endurance is the ability to deliver oxygen and nutrients to tissues and to remove wastes over sustained periods of time. Long runs and swims are among the methods employed in measuring this component. Muscular strength is the ability of a muscle to exert force for a brief period of time. Upper body strength, for example, can be measured by various weight-lifting exercises. Muscular endurance is the ability of a muscle, or group of muscles, to sustain repeated contractions or to continue applying force against a fixed object. Pushups are often used to test endurance of arm and shoulder muscles. And flexibility is the ability to move joints and use muscles through their full range of motion. The sit and reach is a good measure of flexibility of the lower back and back of the upper legs.
Physical fitness and the decision to carry out a physical fitness program should not be taken lightly. It requires a lifelong commitment of time and effort. Exercise must become one of those things that is done without question, like bathing and brushing your teeth. Patience is essential.
Hope it helped!!!
Select the principles and aspects of communication that contribute to effective patient care. Check all of the boxes that apply.
good speaking skills
good listening skills
good drawing skills
good reading and writing skills
displaying courtesy and respect
good math skills
Medicaid is a government health insurance program. What is the eligibility criterion for this program? low-income, age, disability, chronic illness
How does ecosystem affect in our daily life? illustrate in your words
Answer:
Explanation:
ecosystem are vital for human welfare and survival, they provide us our essential products and benefits.
I know I keep making sad stuff now...but to be honest... I sorta like it
When you head hangs low
but your not sure why
when you get this overbearing feeling of sadness
but nothing bad has happened
when you feel like you did something wrong
and you think
"oh that's why I don't have friends"
When people make fun
of the way you look
or talk
or act
but all you can do is cry
and they ask
"what's wrong with you"
"you have everything...why be sad"
but you don't know how to respond because YOU don't even know
and your parent tell you "oh your fine suck it up"
but you don't know how to
and feel like your alone
in a world
full
of sorrows
Answer:
Explanation:
deep
please give brainlest need one
how did you choose the wodr/s without knowing its definition
Answer:
what's the question?
Explanation:
What is wodr/s?
salient points about tobacco regulation act
Answer:
Provisions. The Act prohibits smoking of tobacco in public places, except in special smoking zones in hotels, restaurants and airports and open spaces. ... No person shall participate in advertisement of tobacco product, or allow a medium of publication to be used for advertisement of tobacco products.
O !!!
9. Your mother likes to buy fresh vegetables. Now that she has a new job, she doesn't
have time to wash, peel, slice, and cook them. Your family doesn't like canned
vegetables. Your mother is afraid she will only have time to serve vegetables on the
weekends. What suggestions could you give her?
PLEASE HELP
Heat cramps, heat exhaustion & heatstroke are all the same
True or False?
Answer:
THE ANSWER IS FALSE
Explanation:
You are about to enter a patient's room when you hear her complaining to a guest that, for the third day in a row, she has been delivered the wrong dinner. She needs a low-sodium meal, she says, but they keep bringing her a regular meal, and it takes an hour to correct the error. In the meantime, she waits, hungry.
Select the next step that you think would provide the best customer service.
Do nothing. Patients’ meals aren’t your responsibility.
Ask another staff member about the mixup, and offer to do what you can to help straighten out the problem.
Bring the patient a sleeve of crackers later that day to occupy her while she waits for her dinner.
Tell the patient that the food at the facility is so bad, she’s not missing anything.
Answer:
wokie dokie then the patient has now wasted their last minutes of having the will to live
I would say answer 3... not any other answer..
How are all of the three health aspects linked to each other? The physical, mental and social health.
Answer:
If mental health is not good, that person will stop taking good care of their body (physical). Then they try to isolate themselves from others (social). Mental health is the biggest issue here.
Explanation:
Match the acts with their functions.
JOLI
OHESPR
CED
a federal grant program that provides economic
assistance to low-income individuals and
families to help make them self-sufficient
a federal grant program that provides financial
support to nonprofit organizations
provides guidance in being ready and responsive
during and after federally declared disasters
Answer:
first: JOLI - economic assistance
second: CED - financial support
third - ready and responsive
(these are the keywords)
Answer:
(a federal grant program that provides economic
assistance to low-income individuals and
families to help make them self-sufficient) = CED
(a federal grant program that provides financial
support to nonprofit organizations) = JOLI
(provides guidance in being ready and responsive
during and after federally declared disasters) = OHESPR
Explanation:
I did it on Plato and I got it right
Which Two strategies can help reduce Richard’s stress?
Answer:
556 Diathesis-stress model: a person may be predisposed for a psychological disease ... Describe how exposure therapy can help reduce your fear of spiders, and distinguish ... Discuss at least two advantages and two disadvantages. ... Within the context of his job, describe some aspects of Richard's behavior
Explanation:
Answer:
the first one and the fourth one.
please help me full out the ones i highlighted in red. i have to turn it in soon!!
Answer:
Contract
Lower
Relax
Increase
Answer:
Contract
Decrease
Relax
Increase
1. In the list of exercises above, which 3 activities would MOST be considered to work on cardiovascular endurance?
Answer:
jog in place
jumping jacks
high knees
How many laces are on a football
16 lace holes and one lace Answer:
Explanation:
Always trying to be better than those around, even actively trying to knock others down, is considered:
Answer:
that can be both bullying and being cocky or having a big ego and low regard for others
Explanation:
Need this paper written asap please help me and write it
WRITING: PRINCIPLES OF CARBOHYDRATE LOADING
Write a 300-500 word essay. Explain the purpose of carbohydrate loading. What benefit is it in terms of performance? Give examples of when carbohydrate loading is appropriate and for approximately how long. Give a sample diet for one day of carbohydrate loading; portions are not needed. The emphasis is on food choices. Include three meals and two snacks.
Explanation:
Definition
A carbohydrate-loading diet, also called a carb-loading diet, is a strategy to improve your athletic performance for endurance events by increasing the amount of fuel stored in your muscles.
Carbohydrate loading occurs when you eat a high-carbohydrate "training diet" at the same time that you scale back your activity level in the days before an event.
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Purpose
Any physical activity requires carbohydrates for fuel. For most recreational activity, your body uses its existing energy stores for fuel.
But when you engage in long, intense athletic events, your body needs extra energy to keep going. The purpose of carbohydrate loading is to give you the energy you need to complete an endurance event with less fatigue, improving your athletic performance.
Carbohydrate loading may be most beneficial if you're an endurance athlete — such as a marathon runner, swimmer, cyclist or all three — preparing for an event that will last 90 minutes or more. Other athletes generally don't need carbohydrate loading. It's usually enough to get about half of your calories from carbohydrates.
Diet details
The role of carbohydrates
Carbohydrates, also known as starches and sugars, are your body's main energy source. Complex carbohydrates include legumes, grains and starchy vegetables, such as potatoes, peas and corn. Simple carbohydrates are found mainly in fruits and milk, as well as in foods made with sugar, such as candy and other sweets.
During digestion, your body breaks down carbohydrates into sugar. The sugar enters your bloodstream, where it's then transferred to individual cells to provide energy. Sugar is stored in your liver and muscles as glycogen — your energy source.
Increase your energy storage
Your muscles normally store only small amounts of glycogen — enough to support you during recreational exercise activities. If you exercise intensely for more than 90 minutes, your muscles may run out of glycogen. At that point, fatigue might set in, and your performance may suffer.
But with carbohydrate loading, you may be able to store more energy in your muscles. This may give you the stamina to make it through longer endurance events. But, you'll still need to consume some energy sources during your event.
Carbohydrate loading
Carbohydrate loading is done the week before a high-endurance activity. One to three days before the event, increase your carbohydrate intake to about 8 to 12 grams of carbohydrate per kilogram of body weight. Cut back on foods higher in fat to compensate for the extra carbohydrate-rich foods.
Also scale back your training for three to four days before the event. The combination of eating more carbohydrates and tapering activity appear to boost muscle glycogen stores.
How many carbs you need depends on your total calorie goal as well as your sport. For most athletes, 5 to 7 grams of carbohydrate per kilogram of body weight daily is right for general training. (Note that 1 kilogram equals 2.2 pounds.) Endurance athletes may need up to 12 grams per kilogram.
A gun recoils on firing. Why?
Answer:
When a bullet is fired from a gun, the gun exerts a force on the bullet in the forward direction. The bullet also exerts an equal and opposite force on the gun in the backward direction. ... Therefore a gun recoils when a bullet is fired from it.
Explanation:
A main reason careers in Information Technology are growing faster than average is
the government has provided funding to boost educational programs.
it has a large customer base of people, businesses, and organizations.
large corporations have turned to computers to handle their business.
the Internet has led to more people and businesses needing computer experts.
Answer:
the Internet has led to more people and businesses needing computer experts.
Explanation:
A main reason careers in Information Technology are growing faster than average is the Internet has led to more people and businesses needing computer experts.
The Internet has brought about extra humans and companies desiring computer experts.
Important purpose careers in Information Technology are developing quicker than common is the Internet has brought about extra humans and companies desiring pc experts.
Information generation is constructing communications networks for a company, safeguarding statistics and facts, developing and administering databases, assisting personnel to troubleshoot issues.
With their computer systems or cell devices, or doing more than a few different paintings to make sure the performance and safety of commercial enterprise facts .
What is the Employment rate in Information Technology?The employment rate in pc and facts generation occupations is projected to develop thirteen percent from 2020 to 2030, quicker than the common for all occupations. These occupations are projected to feature approximately 667, six hundred new jobs.
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True or False: Stretching after an intense workout can lessen the strain on your muscles.
Help I’ll give Brainlyest
Answer: double
Explanation:
Which benefit of playing with others helps me meet new friends and become a team player?
Answer:
Companionship
Explanation:
maybe
Take the number from the answer above (N). We will now find the Lower end of the THR. Follow this math equation. ("N" x 0.6) =? Once you find this number, now you will add your (RHR). What number are you left with? This is your lower Target Heart Rate.
Answer:
See Explanation
Explanation:
The question is straightforward; however, some important details are missing.
The missing details are: N and RHR
To solve this question, we will make assumptions for N and RHR
Represent the target heart rate with THR.
So, the steps are:
Step 1: N * 0.6 = (1)
Step 2: (1) + RHR
Step 3: THR = 2
Hence, the equation to solve THR is:
[tex]THR = N * 0.6+RHR[/tex]
Assume the values of N and RHR are: 50 and 60 respectively
The equation becomes
[tex]THR = 50 * 0.6+60[/tex]
[tex]THR = 30+60[/tex]
[tex]THR = 90[/tex]
Hence, the target heart rate for N = 50 and RHR = 60 is: 90
2. Why is knowledge of heart valves and the sounds they make important
to doctors? Explain.
Answer:
The heart has four chambers — two upper chambers (called atria) and two lower chambers (ventricles). The heart has valves that temporarily close to permit blood flow in only one direction. The valves are located between the atria and ventricles, and between the ventricles and the major arteries from the heart.
Normal heart sounds are called S1 and S2. They are the “lubb-dupp” sounds that are thought of as the heartbeat. These sounds are produced when the heart valves close.
Because the heart is also divided into a right side and a left side, sometimes these sounds may be somewhat divided — most commonly noted is a split S2, caused when the right and left ventricles contract at very slightly different times. This is normal, but occasionally the nature of the split can indicate an abnormality such as enlargement of one of the ventricles.
Murmurs are blowing, whooshing, or rasping sounds. They are the result of vibrations caused by turbulent blood flow patterns. This can happen when a valve does not close tightly (such as with mitral regurgitation), or when the blood is flowing through a narrowed opening or a stiff valve (such as with aortic stenosis).
Explanation:
Most Information Technology careers require workers to perform their jobs in
a home office.
a business office.
a secure office.
an off-site office.
C.) a secure office.
Answer: B) a business office
Explanation:
Why do you think people don’t bother cleaning their cell phones?
Answer:
Maybe because they don't think about the everyday germs that they carry.
Explanation: