A simple random sample of 40 items resulted in a sample mean of 10. The population standard deviation is o = 4. Round your answers to two decimal places.a. What is the standard error of the mean, o; ?b. At 95% confidence, what is the margin of error?

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Answered: A simple random sample of 40 items…

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 simple random sample of 40 items resulted in a sample mean of 10. The population standard deviation is o = 4. Round your answers to two decimal places. a. What is the standard error of the mean, or ? b. At 95% confidence, what is the margin of error?