A personnel manager has found that, historically, the scores on apttude tests given to applicants for entry-level positions follow a normal distribution with standard deviation 20.72 points. A random sample of 9 test scores from the current group of applicants had a mean score of 68.44 points. Based on these sample results, a statistician found for the population mean a confidence interval extend from 55.8008 to 81.0792 points Find the contidence level of this interval

A personnel manager has found that, historically, the scores on apttude tests given to applicants for entry-level positions follow a normal distribution with standard deviation 20.72 points. A random sample of 9 test scores from the current group of applicants had a mean score of 68.44 points. Based on these sample results, a statistician found for the population mean a confidence interval extend from 55.8008 to 81.0792 points Find the contidence level of this interval

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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