Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 95% confidence that the sample mean is within 2 years of the population mean. Assume that o = 19.5 years, based on a previous report. Should the sample be obtained from one movie at one theater? The required sample size is (Round up to the nearest integer.)

MATLAB: An Introduction with Applications
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Find the sample size needed to estimate the mean age of movie patrons such that it can be said with
95% confidence that the sample mean is within 2 years of the population mean. Assume that o = 19.5
years, based on a previous report. Should the sample be obtained from one movie at one theater?
The required sample size is
..
(Round up to the nearest integer.)
Transcribed Image Text:Find the sample size needed to estimate the mean age of movie patrons such that it can be said with 95% confidence that the sample mean is within 2 years of the population mean. Assume that o = 19.5 years, based on a previous report. Should the sample be obtained from one movie at one theater? The required sample size is .. (Round up to the nearest integer.)
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