I will give you branilest!

Answer:

a) The point estimate is 6995.

b) The margin of error is of 1691.

c) The standard error is of 1000

Step-by-step explanation:

a. Determine the point estimate for the prediction of student expenditures at a university with a graduation rate of 40%.

The point estimate is the mean of the two bounds of the confidence interval. So

\(P = \frac{5304 + 8686}{2} = 6955\)

The point estimate is 6995.

b. Calculate the margin of error.

The margin of error is the difference between the bounds and the point estimate. So

M = 8686 - 6995 = 6995 - 5304 = 1691

The margin of error is of 1691.

c. Calculate the standard error of the prediction of student expenditures at a university with a graduation rate of 40%.

Now I have to expand a bit into the confidence interval.

We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\(\alpha = \frac{1 - 0.9}{2} = 0.05\)

Now, we have to find z in the Ztable as such z has a pvalue of \(1 - \alpha\).

That is z with a pvalue of \(1 - 0.05 = 0.95\), so Z = 1.645.

The margin of error is:

\(M = zs\)

In which s is the margin of error.

We have that M = 1691. So

\(M = zs\)

\(s = \frac{M}{z} = \frac{1645}{1.645} = 1000\)

The standard error is of 1000

Answer:

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Answer:

6

Step-by-step explanation:

The expression that will represent the volume of the identical rectangular base pyramid is: 2[One-third (5) (0.25) (2)] cubic units.

To calculate for the volume of a rectangular base pyramid, we use the formula:

volume = 1/3 × area of base rectangle × height

volume of one identical pyramid = (1/3 × 5 × 0.5 × 2)cubic units

volume of the two identical pyramid = 2(1/3 × 5 × 0.5 × 2)cubic units.

Therefore, the expression that will represent the volume of the identical rectangular base pyramid is: 2[One-third (5) (0.25) (2)] cubic units.

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Answer:

My first thought is it's saying "try to understand" but also understand is two words put together so if it's divided by 2 it's stand under? not sure, sorry

Answer:doubled

Step-by-step explanation:

Step-by-step explanation:

doubled is the right answer

A perceiving type of person tend to make more use of intuition in their approach of life.

The word "Perceive" means to become aware of through the personal senses.

Therefore, they perceive situation automatically as they are use to that way of life approach.

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man behaviour" here

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Answer:

19. 7

20. 11

21. -12

22. 15

23. 77

24. −6

Step-by-step explanation:

Simply plug the values of a, b and c into each equation and evaluate using a calculator or manually

Answer:

x=–2

Step-by-step explanation:

x-8=-10

x=-10-8

x=–2

Answer:

-8= -10

, = -10+8

, = -2

\( {\qquad\qquad\huge\underline{{\sf Answer}}} \)

Here we go ~

\(\qquad \sf  \dashrightarrow \: scale \: \: factor = \cfrac{new \: \: measure}{original \: measure} \)

\(\qquad \sf  \dashrightarrow \: s = \dfrac{6}{2} \)

\(\qquad \sf  \dashrightarrow \: s = 3\)

so, correct choice is D

The value of x for the interior angles of the parallelogram is equal to 45.

A parallelogram have the sum of its interior angles to be 360°, that is when the four interior angles are added together, they are equal to 360°.

So we shall evaluate for the value of x as follows:

x° + 3x° + x° + 3x° = 360°

adding all like terms, we have;

8x° = 360°

divide through by the coefficient of x;

8x°/8 = 360°/8

x = 45°

Therefore, the value of x for the interior angles of the parallelogram is equal to 45.

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Answer and explanation:

Please find explanation attached

Answer:  240

Step-by-step explanation:

\(\dfrac{1}{2}\times \dfrac{1}{3}\times \dfrac{1}{4}\times \dfrac{1}{5}x=2\\\\\\\dfrac{1}{120}x=2\\\\\\(120)\dfrac{1}{120}x=2(120)\\\\\\\large\boxed{x=240}\)

sorrrrrrrrrry don't know the ansew

Answer:

what's the outside bottom angle

Based on the given information, we have a square pyramid with points M and N being the midpoints of the edges of one face. and forms a parallelogram. Option D

Since the base of the pyramid is a square, the cross section will consist of a square shape. Additionally, since the slice is made through the midpoints of the edges of the face, the resulting cross section will have parallel sides.

Considering these characteristics, we can conclude that the shape of the resulting cross section is a parallelogram. A parallelogram is a quadrilateral with opposite sides parallel. In this case, the opposite sides of the square cross section will be parallel, as the slice passes through the midpoints of the edges.

Therefore, the correct answer is D. parallelogram.

It's important to note that a triangular prism is not the correct answer because a triangular prism is a three-dimensional figure with two triangular bases and three rectangular faces. The cross section resulting from the given slice will not have the characteristics of a triangular prism. Option D.

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The price Jason paid per gallon of gas on this fill-up is $0.03 per gallon

Based on the given task content; this can be solved using the division method.

Total 35 miles in Jason's odometer = Total miles / 35

= 43,156.1 / 35

= 1233.031428571428

Approximately,

1,233.03 of 35 miles per gallon

Amount Jason paid per gallon of gas on this fill-up = 1,233.03 / $34.24

= 0.027768991833126

Approximately,

$0.03 per gallon

In conclusion, the amount Jason paid per gallon of gas is $0.03 per gallon

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Answer: 38.76

Step-by-step explanation:

All you have to do is move both decimals to the right and multiply, example, 10.2 = 102. & 3.80 = 380., then you multiply both numbers. In this case, 102 x 380 is 38760. After you multiply both numbers, you move the decimal to the left, so 38760. = 38.760 or 38.76.

Answer: 0.0622009569378

Step-by-step explanation:

Answer:

If u actually read the sentence B makes more since

Answer:

A: 13

B: 20

C: 23

Don't study: 4 students

Answer:

Slope= -2

Step-by-step explanation:

Answer:6

18 as a product of its prime factors is 2*3*3 while 60 is 2*2*3*5 therefore considering common factors between both numbers we can see that there's one pair of two visible in both products and one pair of three we multiply both of these common values to get the final gcf which is 3*2=6

Side lengths to the nearest tenth and angle measures to the nearest degree are solved below.

The law of cosines signifies the relation between the lengths of sides of a triangle with respect to the cosine of its angle. It is also called the cosine rule.

Given a few triangles with data such that one angle and two sides.

From the formula of the law of cosine:

c² = a² +b² - 2ab cos C. or

a² = c² +b² - 2cb cos A

For triangle (1):

given,

b = 3, c = 7, and ∠A = 41

From the law of cosine,

a² = 7² +3² - 2*7*3 cos 41°

in radians

a² = 49+ 9 - 42 cos 0.715

a² = 26.2

a = 5.12.

For triangle (4):

given,

a = 3, b = 4, and ∠C = 71

From the law of cosine,

c² = a² +b² - 2ab cos C

c² = 3² +4² - 2*3*4 cos 71

in radians

c² = 9 + 16 - 24 cos 1.23  

c² =  16.978

c = 4.12

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Answer:

7.33

Step-by-step explanation:

l/b=3/2

8.6/b=3/2

3b=8.6*2

b=17.2/3

b=7.33

Answer:

3x/4 = 5

Step-by-step explanation:

Answer:

17.5 cups of sugar

Step-by-step explanation:

20 people = 1/2 cup of sugar

10 people = 1/4 cup of sugar

70 people = 17 1/2 cup of sugar

Hope this helps!

Answer:

10 years

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 2%/100 = 0.02 per year,

then, solving our equation

t = 100 / ( 500 × 0.02 ) = 10

t = 10 years

The time required to

accumulate simple interest of $ 100.00

from a principal of $ 500.00

at an interest rate of 2% per year

is 10 years.

Answer: 5/4

Step-by-step explanation:

do the keep change flip method

then it will be 3/4*5/3 which then equals 15/12 after that you would divide by 3 cause it is the only number that would go in evenly then the answer will be 5/4 in the simplest form

The APY for money invested at an annual rate of 4.31% compounded quarterly is 4.41%

percentage, a relative value indicating hundredth parts of any quantity.

We first need to calculate the effective annual interest rate (EAR) using the formula:

EAR = (1 + (APR/n))ⁿ - 1

where APR is the annual percentage rate,

n is the number of compounding periods per year

Given APR = 4.3%,

n = 12

EAR = (1 + (0.043/12))¹² - 1

= 0.0442

APY = 4.42512%

Similarly let us find the APY for money invested at an annual rate of 4.31% compounded quarterly,

we use the same formula, but with n = 4

EAR = (1 + (0.0431/4))⁴ - 1

= 4.41027%

Hence, the APY for money invested at an annual rate of 4.31% compounded quarterly is 4.41027%

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Answer:

sigma should be used

Step-by-step explanation:

Given that The mean length of time in jail from the survey was four years with a standard deviation of 1.9 years.

The above given is for sample of 27 size.

For hypothesis test to compare mean of sample with population we can use either population std dev or sample std dev.

But once population std deviation is given, we use only that as that would be more reliable.

So here we can use population std deviation 1.4 only.

If population std deviation is used we can use normality and do Z test

Hope this helps ;)