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Two independent random samples were collected from the same population to estimate the population mean. Sample A had a sample size of 25 and a sample mean of 50. The 95 percent confidence interval constructed from sample A had a margin of error of 4.2. Sample B had a sample size of n and a sample mean of aB. The k percent confidence interval constructed from sample B had a margin of error of 3.7. Assume both samples had the same sample standard deviation. Which of the following values from sample B explains why the margin of error for sample A is greater than the margin of error for sample B? n = 25, B = 50, k = 95 B n = 25, ig = 60, k= 95 n = 25, iB = 40, k = 95 D n= 20, äg = 50, k= 99 E n= 30, aB = 40, k 90

Two independent random samples were collected from the same population to estimate the population mean. Sample A had a sample size of 25 and a sample mean of 50. The 95 percent confidence interval constructed from sample A had a margin of error of 4.2. Sample B had a sample size of n and a sample mean of aB. The k percent confidence interval constructed from sample B had a margin of error of 3.7. Assume both samples had the same sample standard deviation. Which of the following values from sample B explains why the margin of error for sample A is greater than the margin of error for sample B? n = 25, B = 50, k = 95 B n = 25, ig = 60, k= 95 n = 25, iB = 40, k = 95 D n= 20, äg = 50, k= 99 E n= 30, aB = 40, k 90

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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Two independent random samples were collected from the same population to estimate the population mean. Sample A had a sample size of 25 and a sample mean of 50. The 95 percent confidence interval constructed from sample A had a margin of error of 4.2. Sample B had a sample size of nn and a sample mean of x¯Bx¯B. The kk percent confidence interval constructed from sample B had a margin of error of 3.7. Assume both samples had the same sample standard deviation. Which of the following values from sample B explains why the margin of error for sample A is greater than the margin of error for sample B?

 

Two independent random samples were collected from the same population to estimate the population mean. Sample A had a sample size of 25 and a sample mean of 50. The 95 percent confidence interval constructed from sample A had a margin of error of 4.2. Sample B had a sample size of n and a sample mean of aB. The k percent confidence interval constructed from sample B had a margin of error of 3.7. Assume both samples had the same sample standard deviation. Which of the following values from sample B explains why the margin of error for sample A is greater than the margin of error for sample B? n = 25, B = 50, k = 95 B n = 25, ig = 60, k= 95 n = 25, iB = 40, k = 95 D n= 20, äg = 50, k= 99 E n= 30, aB = 40, k 90
Transcribed Image Text:Two independent random samples were collected from the same population to estimate the population mean. Sample A had a sample size of 25 and a sample mean of 50. The 95 percent confidence interval constructed from sample A had a margin of error of 4.2. Sample B had a sample size of n and a sample mean of aB. The k percent confidence interval constructed from sample B had a margin of error of 3.7. Assume both samples had the same sample standard deviation. Which of the following values from sample B explains why the margin of error for sample A is greater than the margin of error for sample B? n = 25, B = 50, k = 95 B n = 25, ig = 60, k= 95 n = 25, iB = 40, k = 95 D n= 20, äg = 50, k= 99 E n= 30, aB = 40, k 90
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E = t*sn

 

E  is the margin of error

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