USA TODAY reported that the average amount of money spent on coffee drinks each month is $78.00
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USA TODAY reported that the average amount of money spent on coffee drinks each month is $78.00 (USA TODAY Snapshot, November 4, 2016).
a. Suppose that this estimate was based on a representative sample of 20 adult Americans. Would you recommend using the one-sample t confidence interval to estimate the population mean amount spent on coffee for the population of all adult Americans? Explain why or why not.
b. If the sample size had been 200, would you recommend using the one-sample t confidence interval to estimate the population mean amount spent on coffee for the population of all adult Americans? Explain why or why not.
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a The two necessary conditions are 1 that the sample of adult Americans is a rando...View the full answer
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Related Book For 
Introduction To Statistics And Data Analysis
ISBN: 9781337793612
6th Edition
Authors: Roxy Peck, Chris Olsen, Tom Short
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