All categories

2 years ago

If a sample proportion is 0.28, which of the following is most likely the range

Mathematics

2 answers:

ser-zykov [4K]2 years ago

8 0

Answer:

C. (0.17, 0.39)

Step-by-step explanation:

Range of possible values that best describes an estimate for the population parameter is given by the formula;

p^ ± z(SE)

Now, we are given sample proportion is 0.28. Thus, p^ = 0.28

The range will have to be same difference to the left of 0.28 as it is to the right of 0.28.

For option A; difference between 0.14 and 0.28 which is 0.16 is not the same difference between 0.36 and 0.28 which is 0.08. Thus it's not correct.

For option B: difference between 0.16 and 0.28 which is 0.12 is not the same difference between 0.38 and 0.28 which is 0.10 Thus it's not correct.

For option C: difference between 0.17 and 0.28 which is 0.11 is the same difference between 0.39 and 0.28 which is also 0.11. Thus it's correct.

Foe option D: difference between 0.15 and 0.28 which is 0.13 is not the same difference between 0.37 and 0.28 which is 0.09 Thus it's not correct.

dalvyx [7]2 years ago

4 0

Answer:

(0.17, 0.39)

Step-by-step explanation:

a p e x :))

You might be interested in

Consider the ball that fits perfectly inside the cylinder. The volume of the ball is 3,052.08 cm3. What is the volume of the cyl

mixas84 [53]

We know that

[volume of a sphere]=(4/3)*pi*r³-------> r=∛[(3*Volume)/(4*pi)]
r=∛[(3*Volume)/(4*pi)]------> r=∛[(3*3052.08)/(4*pi)]----> r=∛729
r=9 cm

[volume of a cylinder]=pi*r²*h
r=9 cm
h=2*r----> 2*9 -----> 18cm
[volume of a cylinder]=pi*r²*h----->pi*9²*18---> 4578.12 cm³

the answer is
4578 cm³

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=4%5E%7B%5Cfrac%7B-5%7D%7B2%7D%20%7D" id="TexFormula1" title="4^{\frac{-5}{2} }" alt="4^{\frac{

photoshop1234 [79]

Answer:

Given expression is equal to 1/32

Step-by-step explanation:

Given that:

= 4^(-5/2)

To eliminate "-" sign we will invert the fraction as follows:

= (1/4)^ 5/2

Or it can be written as:

= $=\sqrt{(1/4)^5} \\=\sqrt{1/1024} \\=1/32$

This is the simplified expression.

i hope it will help you!

8 0

2 years ago

On day two of a study on body temperatures, 106 temperatures were taken. Suppose that we only have the first 10 temperatures to

NemiM [27]

Answer:

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.2622

The margin of error is:

M = T*s = 2.2622*0.3 = 0.68

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 98.44 - 0.68 = 97.76 ºF

The upper end of the interval is the sample mean added to M. So it is 98.44 + 0.68 = 99.12 ºF

The 95% confidence interval for the mean of all body temperatures is between 97.76 ºF and 99.12 ºF

4 0

2 years ago

Coral created a painting that was 4 1/ 3 ft long and 1 1/ 5 ft wide. What was the area of Corals painting? Express your answer

kotegsom [21]

!! Answer will be C !!

8 0

2 years ago

Which of the following are equations for the line shown below? Check all that

marissa [1.9K]

Answer:

<u> $\fbox{ Correct Answer Option B \& D}$ </u>

Step-by-step explanation:

Hello, to be the correct equation of line the given equation must satisfy all the points lying on that line.

I've solved all the equation for given both the points and concluded Option B & C are the correct equation for the line. The image of solution I'm attaching with this answer.

$\small \sf Thanks \: for \: joining \: brainly \: community!$

6 0

1 year ago