A random sample of 400 items is found to havemean 82 and S.D of 18. Find the maximum errorof estimation at 95% confidence interval. Findthe confidence limits for the mean if x = 82.

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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 random sample of 400 items is found to have mean 82 and S.D of 18. Find the maximum error of estimation at 95% confidence interval. Find the confidence limits for the mean if x = 82.