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Testing for mean time between the order and completion of delivery.

You are the manager of a restaurant that delivers pizza to college dormitory rooms. You have now changed your delivery process in an effort to reduce mean time between order and completion of delivery from the current 25 minutes. From past experience, you can suppose that population standard deviation is 6 minutes. A sample of 36 orders using the new delivery procedure yields a sample mean of 22.6 minutes.

At the 0.05 level of significance, use the five- step p-value approach.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918276

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