question on top and data on the bottom
pls kindly solve rent&buy and sleephrs,they all one question.Thank you!
Students were asked whether they rented or bought their textbook for this class. One of the responses to the question was 'rent. The data for this question is in the column labeled 'Rentorbuy a. Are conditions met to obtain a 95% confidence interval on the proportion of NKU students who rented their textbook? Explain your answer. (2) b. Regardless of your answer in part a, calculate a 95% confidence interval on the proportion of NKU students who rent their textbook for this class. (3) Write a 1-sentence interpretation for your confidence interval. (4) d. c. Does your interval provide strong evidence that a majority of NKU students rent their textbook for this class? Explain your answer. (3) A bookstore manager wants to re-do the survey in #2 with the goal of estimating the proportion of NKU students who rent their textbook for this class using a 95% confidence interval. The manager wants her estimate to be within 3% of the true proportion. Calculate the minimum sample size she must gather to achieve that level of accuracy Be sure to use information from this survey to obtain your sample size estimate. Show work for partial credit. (6) Students were asked how many hours of sleep they get on a typical night (in hours. Responses are in the column labeled 'Sleephrs a. Regardless of your answer in part a, calculate a 95% confidence interval on the mean hours of sleep that NKU students get per night. (3) Write a 1-sentence interpretation of your confidence interval. (4) Based on your interval, is there strong evidence that NKU students are not getting an average of 7 hours of sleep per night? Explain your answer. (3) b. c. 44 45 45 43 49 53 54 43 60 56 63 51 55 46 93 59 47 52 44 54 41 42 44 42 42 50 43 55 50 46 53 53 42 54 50 60 55 63 49 S1 43 72 41 47 40 54 57 46 51 43 53 42 40 700 200 400 300 350 400 400 200 350 100 400 350 500 160 400 200 400 150 400 400 400 350 500 200 140 100 22 22 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 20 0 5 0 5 35 28 20 26 30 15 30 50 30 25 30 1736 2 2 35 25 6 0 15 30 20 7 0", 8 7 9 5 9 9 9 7 7 800 750 8 8 9 8 6 8 7 1 123456789 10 12 13 14 15 16 17 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Students were asked whether they rented or bought their textbook for this class. One of the responses to the question was 'rent. The data for this question is in the column labeled 'Rentorbuy a. Are conditions met to obtain a 95% confidence interval on the proportion of NKU students who rented their textbook? Explain your answer. (2) b. Regardless of your answer in part a, calculate a 95% confidence interval on the proportion of NKU students who rent their textbook for this class. (3) Write a 1-sentence interpretation for your confidence interval. (4) d. c. Does your interval provide strong evidence that a majority of NKU students rent their textbook for this class? Explain your answer. (3) A bookstore manager wants to re-do the survey in #2 with the goal of estimating the proportion of NKU students who rent their textbook for this class using a 95% confidence interval. The manager wants her estimate to be within 3% of the true proportion. Calculate the minimum sample size she must gather to achieve that level of accuracy Be sure to use information from this survey to obtain your sample size estimate. Show work for partial credit. (6) Students were asked how many hours of sleep they get on a typical night (in hours. Responses are in the column labeled 'Sleephrs a. Regardless of your answer in part a, calculate a 95% confidence interval on the mean hours of sleep that NKU students get per night. (3) Write a 1-sentence interpretation of your confidence interval. (4) Based on your interval, is there strong evidence that NKU students are not getting an average of 7 hours of sleep per night? Explain your answer. (3) b. c. 44 45 45 43 49 53 54 43 60 56 63 51 55 46 93 59 47 52 44 54 41 42 44 42 42 50 43 55 50 46 53 53 42 54 50 60 55 63 49 S1 43 72 41 47 40 54 57 46 51 43 53 42 40 700 200 400 300 350 400 400 200 350 100 400 350 500 160 400 200 400 150 400 400 400 350 500 200 140 100 22 22 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 20 0 5 0 5 35 28 20 26 30 15 30 50 30 25 30 1736 2 2 35 25 6 0 15 30 20 7 0", 8 7 9 5 9 9 9 7 7 800 750 8 8 9 8 6 8 7 1 123456789 10 12 13 14 15 16 17 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
