An IQ test n designed so that the mean is 100 and the standard deviation is 20 for the population of normal adults Find the sample size necessary to estimate the mean 1Q score of statistics students such that it can be said with 95% confidence that the sample mean is within 7 1Q points of the true mean. Assume that o 20 and determine the required sample size using technologay Then determine it this is a reasorable sample size for a real world calculation The required sample size is (Rond up to the nearest integer)

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