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a margin of error o

a margin of error o

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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Annual starting salaries for college graduates with degree in business administration are generally expected to be between $20,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Determine how large a sample should be taken for each of the following desired margin of error. Upper Limit - Lower Limit Hint: Use formula o = to estimate the population 4 1. 960 for 95% confidence level. standard deviation and Za/2 For a margin of error of +$400, the required sample size n is (round to the nearest integer): For a margin of error of +$150, the required sample size n is (round to the nearest integer):
Transcribed Image Text:Annual starting salaries for college graduates with degree in business administration are generally expected to be between $20,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Determine how large a sample should be taken for each of the following desired margin of error. Upper Limit - Lower Limit Hint: Use formula o = to estimate the population 4 1. 960 for 95% confidence level. standard deviation and Za/2 For a margin of error of +$400, the required sample size n is (round to the nearest integer): For a margin of error of +$150, the required sample size n is (round to the nearest integer):
For a margin of error of E$140, the required sample size n is (round to the nearest integer):
Transcribed Image Text:For a margin of error of E$140, the required sample size n is (round to the nearest integer):
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