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an IQ test is designed so that the mean is 100 and the standard deviation is 16 for the population of normal adults. find the

an IQ test is designed so that the mean is 100 and the standard deviation is 16 for the population of normal adults. find the sample size necessary to estimate the mean IQ score of statistic students such that it can be said with 95% confidence that the sample mean is within 3 IQ points of the true mean. Assume that Standard deviation(o)=16

A) the required sample size

B) would it be reasonable to sample this number of students, yes or no?

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