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You may need to use the appropriate appendix table or technology to answer this question Fewer young people are driving. In year A, 61.5% of people under 20 years old who were eligible had a driver's license. Twenty years later in year 8 that percentage had dropped to 49.7% Suppose these results are based on a random sample of 1,800 people under 20 years old who were eligible to have a driver's license in year A and again in year B. (a) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answer to four decimal places) 022 At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answers to four decimal places) to (b) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year 87 (Round your answer to four decinal places) At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year 87 (Round your answers to four decimal places) (c) is the margin of error the same in parts (a) and (b)? Why or why not? The margin of error in part (a) is year Bis 8 than the margin of error in part (b). This is because the sample proportion of eligible people under 20 years old who had a driver's Icense in interval estimate in part (b) @ than the sample proportion of eligible people under 20 years old who had a driver's license in year A. This leads to a

You may need to use the appropriate appendix table or technology to answer this question Fewer young people are driving. In year A, 61.5% of people under 20 years old who were eligible had a driver's license. Twenty years later in year 8 that percentage had dropped to 49.7% Suppose these results are based on a random sample of 1,800 people under 20 years old who were eligible to have a driver's license in year A and again in year B. (a) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answer to four decimal places) 022 At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answers to four decimal places) to (b) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year 87 (Round your answer to four decinal places) At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year 87 (Round your answers to four decimal places) (c) is the margin of error the same in parts (a) and (b)? Why or why not? The margin of error in part (a) is year Bis 8 than the margin of error in part (b). This is because the sample proportion of eligible people under 20 years old who had a driver's Icense in interval estimate in part (b) @ than the sample proportion of eligible people under 20 years old who had a driver's license in year A. This leads to a

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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You may need to use the appropriate appendix table or technology to answer this question. Fewer young people are driving. In year A, 61.9% of people under 20 years old who were eligible had a driver's license. Twenty years later in year that percentage had dropped to 49.7% Suppose these results are based on a random sample of 1,800 people under 20 years old who were eligible to have a driver's license in year A and again in year B. (a) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year AT (Round your answer to four decimal places) 022 At 95%, confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answers to four decimal places.) to (b) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year 82 (Round your answer to four decimal places) At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year 57 (Round your answers to four decimal places) (c) is the margin of error the same in parts (a) and (b)? Why or why not? The margin of error in part (a) is an year B is Need Help? 6 than the margin of error in part (b). This is because the sample proportion of eligible people under 20 years old who had a driver's scende in interval estimate in part (b) @ than the sample proportion of eligible people under 20 years old who had a driver's license in year A. This leads to a we Readi
Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. Fewer young people are driving. In year A, 61.9% of people under 20 years old who were eligible had a driver's license. Twenty years later in year that percentage had dropped to 49.7% Suppose these results are based on a random sample of 1,800 people under 20 years old who were eligible to have a driver's license in year A and again in year B. (a) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year AT (Round your answer to four decimal places) 022 At 95%, confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year A? (Round your answers to four decimal places.) to (b) At 95% confidence, what is the margin of error of the number of eligible people under 20 years old who had a driver's license in year 82 (Round your answer to four decimal places) At 95% confidence, what is the interval estimate of the number of eligible people under 20 years old who had a driver's license in year 57 (Round your answers to four decimal places) (c) is the margin of error the same in parts (a) and (b)? Why or why not? The margin of error in part (a) is an year B is Need Help? 6 than the margin of error in part (b). This is because the sample proportion of eligible people under 20 years old who had a driver's scende in interval estimate in part (b) @ than the sample proportion of eligible people under 20 years old who had a driver's license in year A. This leads to a we Readi
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