Question: An IQ test is designed so that the mean is 100 and the standard deviation is 13 13 for the population of normal adults. Find

An IQ test is designed so that the mean is 100 and the standard deviation is 13

13 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 99

99% confidence that the sample mean is within 8

8 IQ points of the true mean. Assume that sigma

equals

=13

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

The required sample size is ___. (Round up to the nearestinteger.)

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