JakimH661389 JakimH661389

30-10-2022
Mathematics

Answered

An IQ test is designed so that the mean is 100 and the standard deviation is 14 for the population of normal adults. Find the sample size necessary to estimate the main IQ score of the residence of a state if you want to be 95% confident that the sample mean is within four IQ points of the true mean. The required Sample size is? (Round to the nearest whole number)

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