1) A random sample of n = 12 individuals is selected from a population with
µ = 70 and a treatment is administered to each individual in the sample. After treatment the sample mean is found to be M = 74.5 with S = 5.20

Based on the sample data, does the treatment have a significant effect.?
Use a two tailed test with α = 0.05
steps
a) State the Null and the Alternate Hypotheses

Answers

Answer 1

A random sample of n = 12 individuals is selected from a population with

µ = 70 and a treatment is administered to each individual in the sample. After treatment the sample mean is found to be M = 74.5 with S = 5.20. Based on the sample data, the treatment has a significant effect as per the deduced test statistic. Following are the statements for Null and the Alternate Hypotheses,

H₀: The treatment does not have a significant effect

Hₐ: The treatment has a significant effect

According to the given information,

Size of the sample, n = 12

Population Mean, μ = 70

Sample Mean, M = 74.5

Standard Deviation, S = 5.20

The Null hypothesis is given by,

H₀: The treatment does not have a significant effect (μ = 70)

The Alternate hypothesis is given by,

Hₐ: The treatment has a significant effect (μ ≠ 70)

Since the population standard deviation is unknown, we will use one-sample t-test here.

Test statistic, TS = (M-μ) / (s/√n)

Substituting the given values of M, μ, S, and n, we get,

TS = (74.5-70) / (5.20/√12)

TS = 4.5 / 1.5

TS ≈ 3

The t table now provides critical values of -2.131 and 2.131 at 15 degrees of freedom for a two-tailed test using α = 0.05 (significance level).

Since our test statistic, TS does not fall in the range of the critical values, it falls in the rejection region. Thus, we can reject the null hypothesis and say that the treatment has a significant effect.

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Related Questions

8 +[13-(2+1] =
20
18
-3

Answers

Answer: false

Step-by-step explanation:

Which function has a greater output value for x = 10? Explain your reasoning.

Answers

The function that has a greater output value for x = 10 is table B

How to determine which function has a greater output value for x = 10?

From the question, we have the following parameters that can be used in our computation:

The table of values

The table A is a linear function with

A(x) = 1 + 0.3x

The table B is an exponential function with the equation

B(x) = 1.3ˣ

When x = 10, we have

A(10) = 1 + 0.3 * 10 = 4

B(10) = 1.3¹⁰ = 13.79

13.79 is greater than 4

Hence, the function that has a greater output value for x = 10 is table B

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AABC is similar to ADEF.
Find x.
D
A
6
B
8
PADEF = 60
[?]
X =

Answers

We can solve for x by equating the two ratios:

a/b = 6/8 = 3/4

We can conclude that x is equal to 3/4.

To find the value of x in the given scenario, where triangles AABC and ADEF are similar, we can use the concept of corresponding sides in similar triangles.

From the given information, we know that the lengths of sides AB and DE are in proportion with each other, as the triangles are similar. Let's denote the length of AB as a and the length of DE as b. Similarly, let's denote the length of BC as c and the length of EF as d.

Since the corresponding sides are in proportion, we can set up the following equation:

AB/DE = BC/EF

Substituting the given values, we have:

a/b = 6/8

To find the value of x, we need to determine the ratio of the corresponding side lengths. Dividing both sides of the equation by 6, we get:

a/6 = b/8

Cross-multiplying, we have:

8a = 6b

Now, we can solve for x by equating the two ratios:

a/b = 6/8 = 3/4

We can conclude that x is equal to 3/4.

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you and a friend have created a carnival game for your classmates. you plan to charge $1 for each time a student plays, and the payout for a win is $5. according to your calculations, the probability of a win is .05 what is your expected value for this game?​

Answers

Answer:

The expected value for this game is -$0.75, indicating that, on average, players would expect to lose $0.75 per game.

Step-by-step explanation:

Expected Value = (Probability of Winning * Payout for Win) - Cost of Playing

In this case:

Probability of Winning = 0.05

Payout for Win = $5

Cost of Playing = $1

Expected Value = (0.05 * $5) - $1

Expected Value = $0.25 - $1

Expected Value = -$0.75

Find k so the product of the roots is -4 if 3x² + 5x + 3k = 0

Answers

Answer:

k = - 4

Step-by-step explanation:

given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 ) , then the product of the roots is [tex]\frac{c}{a}[/tex]

3x² + 5x + 3k = 0 ← is in standard form

with a = 3 and c = 3k , then

[tex]\frac{c}{a}[/tex] = - 4 , that is

[tex]\frac{3k}{3}[/tex] = - 4 ( multiply both sides by 3 to clear the fraction )

3k = - 12 ( divide both sides by 3 )

k = - 4

What is the value of i 20+1
1
-1
i
-i

Answers

the value of 20+1 should be one bc thats what it equals

3. In a cooking class, Martin pours 500 milliliters
of broth into a pot. He then adds 1,500 milliliters
of water to the broth. How much total liquid is in
the pot?
A. 1 liter
B.
2 liters
C.
3 liters
D. 5 liters
C

Answers

Answer:The correct answer is C. 3 liters.

Step-by-step explanation:

To determine the total amount of liquid in the pot, we need to add the volume of the broth and the volume of the water.

The broth has a volume of 500 milliliters, and the water has a volume of 1,500 milliliters. Adding these together, we get:

500 mL + 1,500 mL = 2,000 mL

Since there are 1,000 milliliters in a liter, we can convert the volume to liters:

2,000 mL ÷ 1,000 = 2 liters

Therefore, the total amount of liquid in the pot is 2 liters.

What is x? Because I don’t know g how to work it out

Answers

Answer:

45 degrees

Step-by-step explanation:

The 4 angles of a quadrilateral will add to 360.

We know 1 of them (angle B) is 90 degrees.

We can set up an equation to solve the others.

2x+3x+x+90 = 360

Now solve for x.

Start by combining the x terms together.

6x+90 = 360

6x = 360-90

6x = 270

(6x/6) = 270/6

x = 45 degrees

Check back to see if that makes sense and if the equation equals 360 when x is 45:

2x+3x+x+90 = 360

2(45)+3(45)+45+90=360.

when y is directly proportional to x. When x= 2.5, y=20. what is the value of y when x= 22?

Answers

If it’s proportional that means you can put it in a ratio
Y:X
20:2.5
8:1
176:22

Consider the function f(x)=x^3+16x^2+60x+40. If there is a remainder of −5 when the function is divided by (x−a), what is the value of a?

Answers

The value of "a" is approximately -3.784 when the function f(x) is divided by (x - a) and leaves a remainder of -5.

To find the value of "a" when the function f(x) = x^3 + 16x^2 + 60x + 40 is divided by (x - a) and leaves a remainder of -5, we can use the Remainder Theorem.

According to the Remainder Theorem, if a polynomial f(x) is divided by (x - a), the remainder is equal to f(a).

In this case, the remainder is -5, so we have f(a) = -5.

Substituting a into the function, we get:

f(a) = a^3 + 16a^2 + 60a + 40 = -5

Now, we need to solve this equation to find the value of "a."

a^3 + 16a^2 + 60a + 40 = -5

Rearranging the equation:

a^3 + 16a^2 + 60a + 45 = 0

To find the exact value of "a," we can use numerical methods such as factoring, synthetic division, or using a graphing calculator. Unfortunately, the solution to this equation is not straightforward and requires numerical approximations.

Using numerical methods or a graphing calculator, we find that the value of "a" is approximately -3.784.

Therefore, the value of "a" is approximately -3.784 when the function f(x) is divided by (x - a) and leaves a remainder of -5.

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evaluate 6a +4b -3c when a=4 , b=7 , and c=-2 (a) 26 (b) 16 (c) 46) (d) 58​

Answers

Answer:

(d) 58

Step-by-step explanation:

Let's start with the equation:

6a+4b-3c

Now, since we got the values of a, b, and c, we can just plug them into the equation:

6(4)+4(7)-3(-2)

24+28+6=58

So the answer is d) 58

What is the value of x *
7+5x
47°

Answers

The answer is going to be 8

Answer: X = 8

Step-by-step explanation:

47 - 7 = 40

40 / 5 = 8

x = 8

A student is establishing the A.A criterion for the similarity of triangles [MN and [QR. The student writes LMLN ~ ZQLR What other information can the student use to establish the AA criterion?

Answers

The other information can the student use to establish the AA criterion is Angle LMN congruent angle LQR or angle LMN congruent angle LRQ

The student can use the following information to establish the AA criterion:

Angle MLN congruent angle QLR (already given)Angle LMN congruent angle LQR or angle LMN congruent angle LRQ (either one will work)

These two angles correspond to the two angles in the other triangle (LQR or LRQ) that are not congruent to the angle already known to be congruent (angle QLR).

Therefore, the AA congruent for similarity can be congruent .

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What is the length of this circle?

Answers

The length of arc length s is 1152π² or 11358.26.

We have,

The arc length of a circle can be calculated using the formula:

Arc Length = 2πrθ/360

Where:

π is a mathematical constant approximately equal to 3.14159.

r is the radius of the circle.

θ is the central angle subtended by the arc, measured in degrees.

The arc length of a circle can be written as:

s = angles/360 x 2πr _______(1)

Now,

r = 4 cm

Angle = (2/5)π

Now,

Substitute in (1).
s = angles/360 x 2πr

s = (2/5)π/360 x 2π x 4

s = 2π x 72 x 2π x 4

s = 4π² x 288

s = 1152π²

or

s = 11358.26

Thus,

The length of arc length s is 1152π² or 11358.26.

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factorise fully:

1) 2014² - 2013²

please explain and help​

Answers

4027


The rule of the “difference of two squares” says $$2014^2 - 2013^2 = (2014 +2013) * (2014 - 2013)$$

= (2014 +2013) * (2014 - 2013)
= 4027 * 1
= 4027

Which expressionis equivalent to 60m-2n6/5m-4n-2 for all values of m and n where the expression is defined?

Answers

The expression that is equivalent to [tex]\\\\\frac{60m^-2n^6\\}{5m^-4 n^-2}[/tex] for all values of m and n where the 5m-4n-2 expression is defined is [tex]12m^{2} n^{8}[/tex]

How can the expression be known?

In mathematics, an expression or mathematical expression  can be described as the finite combination of symbols which is been analyzed and  well-formed according by following some set of rules which could be varies base on the kind of the symbol as ll as the operation  that are involved in the expression and it s been done  depending on the context so that another expression can be gotten.

This is given as   [tex]\\\\\frac{60m^-2n^6\\}{5m^-4 n^-2}[/tex]

Then we have it defined by;  [tex]12m^{2} n^{8}[/tex]

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The first shelf of one bookcase is 2 inches off the ground. The second shelf is 1’5” above the first the third shelf is 1’3” above the second and the fourth shelf is 1’2” above the third. The top shelf is 1’4” above the fourth how high off the ground is the top shelf.

Answers

answer: 5'6"

step by step: 1'5"+2"=1'7"+1'3"=3'0"+1'2"=4'2"+1'4"=5'6"

Can someone please answer and provide an explanation for these problems?

Answers

The values of x for the tangent segments to the circles are: (25). x = 2 and (26). x = 4

What are the segments tangent to the circle

A theorem of tangents to a circle states that if from one exterior point, two tangents are drawn to a circle then they have equal tangent segments.

(25). 2x - 1 = x + 1 {equal tangent segments}

2x - x = 1 + 1 {collect like terms}

x = 2

(26). 2x - 4 = x {equal tangent segments}

2x - x = 4 {collect like terms}

x = 4

Therefore, the values of x for the tangent segments to the circles are: (25). x = 2 and (26). x = 4

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A woodworker wants to build a jewelry box in the shape of a rectangular prism with a total volume of 61.3 cubic inches. The woodworker is going to use a very expensive exotic wood to build the box. He wants to choose the dimensions of the box so that the bases of the prism are squares and the box's surface area is minimized. What dimensions should he choose for the box? Round answers to 4 decimal places

Answers

Answer: the woodworker should choose the dimensions of the box to be approximately 3.825 inches by 3.825 inches by 1.603 inches, with a total surface area of approximately 33.512 square inches.

Step-by-step explanation:

Let the side length of the square base be x, and the height of the prism be h. Then the volume of the prism is:

V = x^2h

We're given that V = 61.3 cubic inches, so:

x^2h = 61.3

We want to minimize the surface area of the box, which consists of the area of the two square bases (2x^2) plus the area of the four rectangular faces (4xh). So the total surface area is:

A = 2x^2 + 4xh

We can solve the first equation for h:

h = 61.3/x^2

Substituting this into the equation for A, we get:

A = 2x^2 + 4x(61.3/x^2)

A = 2x^2 + 245.2/x

To minimize A, we take the derivative and set it equal to zero:

dA/dx = 4x - 245.2/x^2 = 0

4x = 245.2/x^2

x^3 = 61.3

x = (61.3)^(1/3)

x ≈ 3.825

So the length of each side of the square base should be approximately 3.825 inches. We can use the equation for h to find the height:

h = 61.3/x^2

h ≈ 1.603

So the height of the prism should be approximately 1.603 inches.

Therefore, the woodworker should choose the dimensions of the box to be approximately 3.825 inches by 3.825 inches by 1.603 inches, with a total surface area of approximately 33.512 square inches.

Haru recorded how long his bus ride to school took for `16` days.



Here are the values of the quartiles.



About how many rides would you expect to be less than `6.5` minutes long?

Answers

The number of rides that one would expect to be less than `6.5` minutes long is 4 rides.

How to determine the number of rides

To determine the number of rides, we will first begin by classifying the quartiles. There are 4 quartiles that each constitute 25% of the ride timing.

The number of rides that one would expect to be less than 6.5 minutes can be gotten by finding 25% of 16, the total days recorded. This is 1/4 * 16 = 4. So, the number of rides that will be less than 6.5 minutes will be 4 rides.

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Cual es la sucesión aritmética de 3,8,13,18,23

Answers

Equation [1] : a(n) = 3 + (n - 1)5 represents the step where he made the mistake.

We have,

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators. A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have a student who used the explicit formula a[n] = 5+3(n-1) for the sequence 3,8,13,18,23,...to find the 12th term.

The given sequence is -

3 , 8 , 13 , 18 , 23, ..

Here -

d = 8 - 3 = 13 - 8 = 5

a = 3

a(n) = a + (n - 1)d      {for arithmetic sequence}

a(n) = 3 + (n - 1)5     ...Eq[1]

a(n) = 3 + 5n - 5

a(n) = 5n - 2

Therefore, Equation [1] : a(n) = 3 + (n - 1)5 represents the step where he made the mistake.

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complete question:

A student uses the explicit formula an= 5+3(n-1) for the sequence 3,8,13,18,23,...to find the 12th term. Explain the error the student made.

D
(x+2)(x+6)=0
In the problem shown, to conclude that x+2=0 orx+6=0, one must use the:
O zero product property
O division property
O transitive property
O multiplication property
H
OI

Answers

Answer:

zero product property

Step-by-step explanation:

To conclude that x+2=0 or x+6=0 from the equation (x+2)(x+6)=0, one must use the zero product property.

The zero product property states that if the product of two factors is equal to zero, then at least one of the factors must be equal to zero. In this case, if (x+2)(x+6)=0, it means that the product of (x+2) and (x+6) is zero. Therefore, we can conclude that either (x+2) = 0 or (x+6) = 0, based on the zero product property.

The distribution of monthly charges for cellphone plans in the United States is approximately normal with a mean of $62 and a standard deviation of $18. What percentage of plans have charges that are less than $83.60?

Answers

About 88.49% of cellphone plans have charges that are less than $83.60.

How to determine the percentage of plans have charges that are less than $83.60?

To determine the percentage of plans that have charges less than $83.60, we need to find the z-score (z) using the given mean and standard deviation, and then look up the corresponding area under the normal distribution curve.

z = (x – μ) / σ

where x = 83.60, mean, μ =  62 and standard deviation, σ = 18

Thus, the z-score of $83.60 is:

z = (83.60 - 62) / 18 = 1.2

Using a standard normal distribution table, we can find that the area to the left of z = 1.20 is 0.8849 or 88.49% (check image attached).

Therefore, about 88.49% of cellphone plans have charges that are less than $83.60.

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How many different ways can president, vice president, and secretary be chosen from a group of 24 individuals?

Answers

The number of ways to choose a president, vice president and secretary from a set of 24 individuals is given as follows:

12,144 ways.

What is the permutation formula?

The number of possible permutations of x elements from a set of n elements is given by:

[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]

The permutation formula is used when the order in which the elements are chosen is important, which is the case for this problem. The order is important as there are different roles, that is, president, vice president and secretary.

For this problem, 3 people are chosen from a set of 24, hence the number of ways is given as follows:

P(24,3) = 24!/21! = 12144.

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A rectangle has an area of 114cm squared and a perimeter of 50 cm. What are its dimensions

Answers

Answer:

width = 6

length = 9

Step-by-step explanation:

Perimeter = 2(length + width) or P = 2(l + w)

2(l + w) = 50

l + w = 25

l = 25 - w

Area = length x width or A = lw

lw = 114

Substitute l = 25 - w into the lw = 114

(25 - w)w = 114

25w - w^2 = 114

-w^2 + 25w - 114 = 0

=> w^2 - 25w + 114 = 0

we have x = [-b ± √(b^2 - 4ac)] / 2a

w = [-(-25) ± √((-25)^2 - 4(1)(114)))] / 2(1)

w = [25 ± √(625 - 456)] / 2

w = [25 ± √(169)]/2

w = [25 ± 13]/2

w = [25 + 13]/2 = 38/2 = 14

or

w = [25 - 13]/2 = 12/2 = 6

if width = 14, length = 25 - 14 = 11

then area = 14 x 11 = 154, this is incorrect answer

if width = 6, length = 25 - 6 = 19

then area = 6 x 19 = 114, this is correct answer

Which equation is the inverse of y = x² - 36?
Oy=± √√x +6
Oy=+√√x+36
O y=+√√x +36
Oy=+√√x²+36

Answers

Answer:

Step-by-step explanation:

Answer:   B y = ±[tex]\sqrt{x+36}[/tex]

Step-by-step explanation:

To find the inverse of any equation.  Switch the x and the y then solve for y.

y = x² - 36                      >switch variables

x = y² - 36                      >add 36 to both sides

x+36=y²                         >take square root of both sides

y = ±[tex]\sqrt{x+36}[/tex]  

B

Please help urgent thank you

Answers

If he wants an average of 84, he needs to get at least 93 points.

What score does he need to get in the next test?

Remember that the average value between 3 values A, B, and C is:

(A + B + C)/3

Here we know that the first two scores are 76 and 83 points, let's say that the third score is x, if we want to have an average of 84 or more, then we need to solve:

(76 + 83 + x)/3 = 84

159 + x = 252

x = 252 - 159

x = 93

So he needs to get at least 93 points in the next exam.

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A square piece of sheet metal (24 in x 24 in)
is used to make an open box (no lid). Equal
squares are cut out of each corner, and the
edges are folded up to make the box.
What is the maximum volume, V, of the box?

Answers

The maximum volume of the box is 864 cubic inches.

Let side length of the square cut from each corner is x inches.

After cutting the squares from each corner, the remaining dimensions of the sheet metal will be:

Length: 24 - 2x inches

Width: 24 - 2x inches

Height: x inches

So, the volume of the box

V = (24 - 2x) (24 - 2x)  x

V = x(24 - 2x)²

To find the maximum volume, we can take the derivative of V with respect to x, set it to zero, and solve for x:

dV/dx = (24 - 2x)² - 2x(24 - 2x) = 0

4x² - 96x + 576 = 0

Solving the quadratic equation,

x = 6 and x = 12.

We can substitute x = 6 into the volume equation to find the maximum volume:

V = 6(24 - 2(6))²

V = 6(12)²

V = 6 x 144

V = 864 cubic inches

Therefore, the maximum volume of the box is 864 cubic inches.

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Can someone help me? Write a rule for nth term of the arithmetic sequence with a1=7 and the common difference is 3

Answers

Answer:

[tex]a_n=3n+4[/tex]

Step-by-step explanation:

If the common difference is d=3 and the first term is a₁=7, then we can create an arithmetic sequence:

[tex]a_n=a_1+(n-1)d\\a_n=7+(n-1)(3)\\a_n=7+3n-3\\a_n=3n+4[/tex]

Suppose it is known that 879 of young Americans earn a hig of 1600 young Americans is selected.
a) Describe the distribution of the proportion of people in t high school diploma.
chool diploma. A random sample
same who have earned their
b) What is the probability that at least 88% of the sample of 1600 young Americans will have earned their high school diploma?

Answers

(a) The distribution of the proportion of people in t high school diploma = 0.0158.

(b)  the probability that at least 88% of the sample of 1600 young Americans will have earned their high school diploma is extremely small.

Given that,

(a) Based on the central limit theorem, the normal distribution may be used to approximate the fraction of persons in the sample who have a high school diploma.

The mean proportion of individuals in the population who have earned their high school diploma can be estimated as

⇒ 879/1600 = 0.5494.

The standard deviation can be estimated as the square root of (0.5494*(1-0.5494)/1600)

=0.0158

b) To find the probability that at least 88% of the sample of 1600 young Americans will have earned their high school diploma,

We need to use the normal distribution with a mean of 0.5494 and a standard deviation of 0.0158.

We can standardize the value of 88% to the corresponding z-score:

z = (0.88 - 0.5494) / 0.0158

  = 20.99

Using a standard normal distribution table or calculator, we find that the probability of a z-score this large or larger is essentially zero,

So the probability that at least 88% of the sample will have earned their high school diploma is extremely small.

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What is the location of point B?(-2, 9)(2, -9)(9, 2)(9, -2) Today, everything at a store is on sale. The store offers a 20% discount. B. If the regular price of an item is x dollars, what is the discount price in dollars? i need answers!!!!! Complete Subjects andPredicatesoff and RunningGrammar. Compound SentencesEach sentence has a complete subject and a completepredicate.A complete subject has all of the words that tell whomor what the sentence is about. A complete predicate hasall of the words that tell what the subject is or doescomplete completesubject predicateWe all recounted the votes.Thinking QuestionsWhat are the words thattell whom or what thesentence is about?What are the words thattell what the subject is ordoes?Activity Circle the complete subject and underline the complete predicatein each sentence.1. The girl with the blue ribbon was running for class president,2. The poster with the sparkles was Reina's.3. Reina's parents and friends helped write her speech4. The past class presidents always worked to improve the school.5 All of the students cast their votes.o. Someone in the lobby yelled that the votes were in At you school, 170 students participated in a fundraiser. It was the schools goal to get at least 80% of the students to participate. If there are a total of 290 students in the school, what percentage of students participated in the fundraiser ? What soil horizon is the most important for the growth of plants (agriculture) ? what value does the 8 represent in the number 865,202? if 2^x=3^y=12^z, show 1/z=1/y+2/x 15. Which of the following is the correct electron configuration for neon (10Ne)?A. 1s 2s22pC. 184 2s2 3s2 2p?B. 1s 2s2 3s2 2p4D. 152 282 3s2p5 Consider Carmens plans.Parallel lines k and l are crossed by transversal t. Line m crosses lines t, k, and l. The angles formed by lines k, t, and m, clockwise from top left are 2, 1, blank, blank, blank (6 x + 5) degrees; formed by lines l and t are blank, (7x minus 4) degrees, blank, blank; formed by lines l and m are 48 degrees, blank, blank, blank.Carmen used her knowledge of angle relationships to find the value of x in the diagram.What is the value of x?x = 5x = 9x = 13x = 16 If a well is dug at -60 feet per day. How many days did it take to dig -5400 feet?(Answer numerically ex: 30 Days answer = 30) The base and corresponding height of a parallelogram are 75 cm and 25 cm. If the other base is 50 cm, find out its corresponding height. Danielle is designing a system to help race cars slow safely and rapidly at her local racetrack. The racetrack is a straight, 1,000-meter stretch of asphalt. Half of the track is devoted to races and the other half is designed to let cars decelerate after crossing the finish line.Danielle has designed a pair of small parachutes that are automatically released out the back of a car once it crosses the finish line. When her system works properly, the race car driver does not need to apply the brakes to bring the car to a stop before running out of track.When Danielle tests a prototype of her design, it brings a race car to a stop 275 meters behind the finish line. After taking some measurements, she decides that her design causes the driver to experience too much force. To correct this, she could A. make the parachutes larger in order to increase the drag forces on the car and bring it to a stop 200 meters after crossing the finish line. B. add a third parachute in order to increase the drag forces on the car and bring it to a stop 175 meters after crossing the finish line. C. make the parachutes smaller in order to decrease the drag forces on the car and bring it to a stop 400 meters after crossing the finish line. D. remove one of the parachutes in order to decrease the drag forces on the car and bring it to a stop 550 meters after crossing the finish line. 7/8+ (4/8-2/4) anybody know?? You roll a 6-sided die. What is P(factor of 10)? Write your answer as a percentage rounded to the nearest tenth. A certain financial services company uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. Suppose that in February 2012, a sample of 1,000 adults showed 410 indicating that their financial security was more than fair. In February 2010, a sample of 1,100 adults showed 385 indicating that their financial security was more than fair.Required:a. State the hypothesis that can be used to test for a significant difference between the population proportions for the two years?b. What is the sample proportion indicating that their financial security was more that fair in 2012?In 2010?c. Conduct the hypothesis test and compute the p-value.At a .05 level of significance what is your conclusion?d. What is the 95% confidence interval estimate of the difference between the two population proportion? What does the Parthenon mean? also, what does astrolabe mean One side, in inches, of a triangle is 5 more than twice a number. If this is an equilateraltriangle, what is the perimeter ? A fish tank, shaped as a cube, has a volume of 36 liters, or 2,197 in? What are the dimensions of the fish tank in inches? UseEach edge of the fish tank measuresin. Select the correct answer.An irregular parallelogram rotates 360 about the midpoint of its diagonal. How many times does the image of the parallelogram coincide with its preimage during the rotation?A. 2B. 4C. 6D. 8 List 2 ways of how The Battle of Okinawa was similar to the Battle of Iwo Jima