An IQ test is designed so that the mean is 100 and the standard deviation is 23 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students...

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

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

confidence that the sample mean is within

IQ points of the true mean. Assume that

equals23

This number of IQ test scores is a fairly

This number of IQ test scores is a fairly

This number of IQ test scores is a fairly

This number of IQ test scores is a fairly

number.