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In: Statistics and Probability

A drugstore considers a wait of more than 5 minutes to be a defect. Each week...

A drugstore considers a wait of more than 5 minutes to be a defect. Each week 100 customers are randomly selected and timed at the checkout line. The numbers of defects for 20 consecutive weeks are given below.

4 4 5 5 5 5 5 6 6 6 6 12 6 6 6 7 6 7 8 7

Find the correct lower control limit

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orchestra answered 1 year ago
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