Answered: An IQ test is designed so that the mean…

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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An IQ test is designed so that the mean is 100 and the standard deviation is

1818

for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with

9595%

confidence that the sample mean is within

IQ points of the true mean. Assume that

sigmaσequals=1818

and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation.

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