Citizens drink more than the average american


According to the Coffee Research Organization the typical American coffee drinker consumes an average of 3.1 cups per day. A sample of 12 senior citizens revealed they consumed 3.4 cups per day with a standard deviation of 6.7. At the 0.05 significane level does this sample sugggest senior citizens drink more than the average american?

A- What is your test hypothesis

B- What is your test statistic

C- What is your critical value

D- What is your decision and why

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Basic Statistics: Citizens drink more than the average american
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