Business, 16.10.2020 07:01 ladybugys

A microwave manufacturing company has just switched to a new automated production system. Unfortunately, the new machinery has been frequently failing and requiring repairs and service. Historically, the company has been able to provide its customers with a completion time of 6 days or less. To analyze whether the completion time has increased, the production manager took a sample of 36 jobs and found that the sample mean completion time was 6.5 days with a sample standard deviation of 1.5 days. At a significance level of .10 using the critical value rule, we can show that the completion time has increased. Required:
Indicate which test you are performing; show the hypotheses, the test statistic and the critical values and mention whether one- tailed or two-tailed.

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A microwave manufacturing company has just switched to a new automated production system. Unfortunat...

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