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A population has standard deviation o = 17.4. Part 1 of 2 (a) How large a sample must be drawn so that a 99% confidence interval for u will have a margin of error equal to 4.1? Round the critical value to no less than three decimal places. Round the sample size up to the nearest integer. A sample size of is needed to be drawn in order to obtain a 99% confidence interval with a margin of error equal to 4.1. Part 2 of 2 (b) If the required confidence level were 99.9%, would the necessary sample size be larger or smaller? (Choose one) ▼ because the confidence level is (Choose one) v higher lower

A population has standard deviation o = 17.4. Part 1 of 2 (a) How large a sample must be drawn so that a 99% confidence interval for u will have a margin of error equal to 4.1? Round the critical value to no less than three decimal places. Round the sample size up to the nearest integer. A sample size of is needed to be drawn in order to obtain a 99% confidence interval with a margin of error equal to 4.1. Part 2 of 2 (b) If the required confidence level were 99.9%, would the necessary sample size be larger or smaller? (Choose one) ▼ because the confidence level is (Choose one) v higher lower

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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A population has standard deviation o = 17.4. Part 1 of 2 (a) How large a sample must be drawn so that a 99% confidence interval for u will have a margin of error equal to 4.1? Round the critical value to no less than three decimal places. Round the sample size up to the nearest integer. A sample size of is needed to be drawn in order to obtain a 99% confidence interval alo with a margin of error equal to 4.1. Part 2 of 2 (b) If the required confidence level were 99.9%, would the necessary sample size be larger or smaller? because the confidence level is |(Choose one) ▼ (Choose one) ▼ higher lower 1ll
Transcribed Image Text:A population has standard deviation o = 17.4. Part 1 of 2 (a) How large a sample must be drawn so that a 99% confidence interval for u will have a margin of error equal to 4.1? Round the critical value to no less than three decimal places. Round the sample size up to the nearest integer. A sample size of is needed to be drawn in order to obtain a 99% confidence interval alo with a margin of error equal to 4.1. Part 2 of 2 (b) If the required confidence level were 99.9%, would the necessary sample size be larger or smaller? because the confidence level is |(Choose one) ▼ (Choose one) ▼ higher lower 1ll
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