According to the 2019 National Coffee Drinking Study from the National Coffee Association, 63% of 2,815 U.S.

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According to the 2019 National Coffee Drinking Study from the National Coffee Association, 63% of 2,815 U.S. adults respondents reported drinking coffee in the past 24 hours. Based on these data, a theory-based 99% confidence interval for the proportion of all adult Americans that drank coffee in the previous 24 hours is:

A. 0.6149 to 0.6448 

B. 0.6120 to 0.6477

C. 0.6064 to 0.6533 

D. 0.5930 to 0.6670

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Introduction To Statistical Investigations

ISBN: 9781119683452

2nd Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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