Question: Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 90% condence that the sample

Find the sample size needed to estimate the mean age of

Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 90% condence that the sample mean is within 3 years of the population mean. Assume that o = 19.4 years, based on a previous report. Could the sample be obtained from one movie at one theater? @- The required sample size is D. (Round up to the nearest integer.)

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