A recent study revealed the typical American coffee drinker consumes an average of 3.1 cups per day.
Question:
A recent study revealed the typical American coffee drinker consumes an average of 3.1 cups per day. A sample of 12 senior citizens revealed they consumed the following amounts of coffee, reported in cups, yesterday.
At the .05 significance level, do these sample data suggest there is a difference between the national average and the sample mean from seniorcitizens?
Transcribed Image Text:
3.1 3.3 3.5 2.6 2.6 4.3 4.438 3.1 4.1 3.1 3.2
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Related Book For
Statistical Techniques in Business and Economics
ISBN: 978-0078020520
16th edition
Authors: Douglas Lind, William Marchal
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