An IQ test is designed so that the mean is 100 and the standard deviation is
77
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
9999%
confidence that the sample mean is within
22
IQ points of the true mean. Assume that
sigmaσequals=77
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
nothing.
(Round up to the nearest integer.)
An IQ test is designed so that the mean is 100 and the standard deviation is...
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