Question

(1 point) (a) Find the size of each of two samples (assume that they are of...

(1 point) (a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume the "worst case" scenario for the value of both sample proportions. We want a 99 99 % confidence level and for the error to be smaller than 0.02. 0.02. Answer:

(b) Again find the sample size required, as in part (a), but with the knowledge that a similar student last year found that the proportion of boys afraid of spiders is 0.51 and the proportion of girls afraid of spiders was 0.82. Answer:

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

pls upvote...!!!

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(1 point) (a) Find the size of each of two samples (assume that they are of...
(1 point) (a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume the "worst case" scenario for the value of both sample proportions. We want a 96% confidence level and for the error to be smaller than 0.03. Answer:____ (b) Again find the sample size required, as in part (a), but with...
(a) Find the size of each of two samples (assume that they are of equal size)...
(a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume the "worst case" scenario for the value of both sample proportions. We want a 9696% confidence level and for the error to be smaller than 0.1.0.1. Answer: (b) Again find the sample size required, as in part (a), but with the knowledge...
Find the size of each of two samples (assume that they are of equal size) needed...
Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume the "worst case" scenario for the value of both sample proportions. We want a 9595% confidence level and for the error to be smaller than 0.03.0.03. Answer: (b) Again find the sample size required, as in part (a), but with the knowledge that...
(a) Find the size of each of two samples (assume that they are of equal size)...
(a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume the "worst case" scenario for the value of both sample proportions. We want a 9999% confidence level and for the error to be smaller than 0.04.0.04. Answer: (b) Again find the sample size required, as in part (a), but with the knowledge...
Use the expression in the accompanying discussion of sample size to find the size of each...
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 99​% confidence that your error is no more than 0.06. The sample should include ___ men and ___ women.
a) Consider random samples of size 56 drawn from population A with proportion 0.77 and random...
a) Consider random samples of size 56 drawn from population A with proportion 0.77 and random samples of size 78 drawn from population B with proportion 0.67 . Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places. standard error = ___________________ b) Consider random samples of size 470 drawn from population A with proportion 0.55 and random samples of size 210 drawn from population B...
Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples...
Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples of size 64 drawn from population B with proportion 0.19 . Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places.
Consider random samples of size 82 drawn from population A with proportion 0.45 and random samples...
Consider random samples of size 82 drawn from population A with proportion 0.45 and random samples of size 64 drawn from population B with proportion 0.11 . (a) Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places. standard error = Enter your answer in accordance to the question statement       (b) Are the sample sizes large enough for the Central Limit Theorem to apply?...
Consider random samples of size 58 drawn from population A with proportion 0.78 and random samples...
Consider random samples of size 58 drawn from population A with proportion 0.78 and random samples of size 76 drawn from population B with proportion 0.68 . (a) Find the standard error of the distribution of differences in sample proportions, p^A-p^B. Round your answer for the standard error to three decimal places. standard error = Enter your answer in accordance to the question statement (b) Are the sample sizes large enough for the Central Limit Theorem to apply? Yes No
A)Use population {3, 8, 10}. Assume that samples of size n = 2 are randomly selected...
A)Use population {3, 8, 10}. Assume that samples of size n = 2 are randomly selected with replacement. Construct a table representing the sampling distribution of the sample mean. B) Use population {3, 8, 10}. Assume that samples of size n = 2 are randomly selected with replacement. Find the mean of the sampling distribution of the sample mean. C) Three coins are flipped. Assume that for a single flip, a Heads up is equally likely as Tails up. Construct...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT