Mathematics, 15.12.2020 18:50, randy719

A popular restaurant chain advertises that it delivers orders within 30 minutes. Suppose the average delivery time for one restaurant is 27 minutes with a standard deviation of three minutes. One particular order delivery took 35 minutes. What is the z-score for this delivery time? –2.67
–1.67
1.67
2.67

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A popular restaurant chain advertises that it delivers orders within 30 minutes. Suppose the average...