Question

The International Coffee Association has reported the mean daily coffee consumption for adult U. S. residents is 2 or more cups. A random sample of 18 adult U. S. residents showed an average of 1.8 cups with a standard deviation of 0.85 cups consumption per day. Is there enough evidence to prove The International Coffee Association claim is wrong? α = 0.01.

Ho:____________________

Ha:______________________

Test Statistics: _______________________

Decision Rule: _______________________

Decision: _____________________

Interpretation: ___________________

Answer 1

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