A local eat-in pizza restaurant wants to investigate the possibility of starting

Question

A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 37 minutes. The owner has randomly selected 15 customers and delivered pizzas to their homes. What hypotheses should the owner test to demonstrate that the pizza delivery will not be successful?

A) H0: µ = 37 vs. Ha: µ > 37

B) H0: µ = 37 vs. Ha: µ J 37

C) H0: µ = 37 vs. Ha: µ < 37

D) H0: µ < 37 vs. Ha: µ = 37

Explanation / Answer

Null Hypothesis vs Alternative Hypothesis
average time spent on a delivery is equals to 37, H0: µ = 37 vs.
average time spent on a delivery does not exceed 37 minutes, Ha: µ < 37

C) H0: µ = 37 vs. Ha: µ < 37

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