Statistics module 2 homework question 10 help

Statistics
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10.)You want to estimate  for the population of waiting times at a fast-food restaurant’s drive-up windows, and you want to be 95% confident that the sample standard deviation is within 20% of .  Find the minimum sample size needed.  Is this sample size practical?

Jan 18th, 2016

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Jan 18th, 2016

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Dec 10th, 2016
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