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prohojiy [21]
3 years ago
14

A behavioral scientist investigated whether there is a significant difference in the percentages of men and women who purchase s

ilver-colored cars. The scientist selected a random sample of 50 men and a random sample of 52 women who had recently purchased a new car. Of the men selected, 16 had purchased a silver-colored car. Of the women selected, 9 had purchased a silver-colored car. Which of the following is the most appropriate method for analyzing the results?
A. A two-sample z-test for the difference in sample proportions
B. A one-sample z-test for a sample proportion
C. A one-sample z-test for a population proportion
D . A one-sample z-test for a difference in sample proportions
Mathematics
1 answer:
Fiesta28 [93]3 years ago
5 0

Answer:

Step-by-step explanation:

Since we are dealing with two independent samples and we want to compare the two sample proprtions and the following are true

The sample sizes for the men and women are large. They are greater than 30 thus, they are normally distributed according to the central limit theorem.

The data points and outcomes are independent of each other.

Therefore, the most appropriate method for analyzing the results is

A. A two-sample z-test for the difference in sample proportions

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5
a_sh-v [17]

Answer:

I could be wrong, but I believe that the answer is D, none. This is because there is only proof of one congruent side and angle.

Step-by-step explanation:

4 0
2 years ago
Which line has a slope of 1, and which has a slope of 2?
aleksley [76]

Answer:

Line "L" has the slope of 1 and line "K" has the slope of 2.

In order to graph a line with the slope of \frac{1}{3} think of the numerator as the "rise" (how much you move up/down on the y-intercept) and the denominator as the "run" (how much you move to the side on the x-intercept)

Step-by-step explanation:

A slope of "1" is simply \frac{1}{1} so you rise up one and move to the right once. This clearly demonstrated on line "L".

A slope of "2" is \frac{2}{1} so you rise up two and move to the right once, as is demonstrated on line "K".

For the 2nd question, line "A" will have a slope of \frac{1}{3} therefore it will move up once and then to the side three times. It will look like the image attached to this answer.

I hope this helped! Feel free to ask questions if needed!

6 0
3 years ago
N+5n=30 what does n equal
KiRa [710]

The answer is n equals five
8 0
3 years ago
Annalee hammered in nail into a piece of wood each time she hammer the nail it went to 1/8 Inch deeper into the word if she hamm
mash [69]

Answer: 0.5 inch

Step-by-step explanation:

Given

On hammering nail advances \frac{1}{8}\ inch  each time

Annalee hammered 4 times

So, total advancement of nail= 4\times \dfrac{1}{8}=\dfrac{1}{2}\ inch

3 0
3 years ago
HELP NOW PLEASE is say for each pair of angle in parts A thought D estimate the measure of each angle.
Mice21 [21]

Answer: A: V is an acute angle, so it is less than 90 degrees. I would say it's around 45 degrees.

B: K is also an acute angle, but it is fairly close to being 90 degrees, so I'd say around 80 degrees.

C:  Q is an obtuse angle, so it is over 90 degrees but less than 180 degrees. I would say it's around 110 degrees.

D: Y is an obtuse angle. It is very close to 180 degrees. I would say it's around 160 degrees.

Step-by-step explanation:


3 0
3 years ago
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