You Explain It! Drive-Through Service Time The trade magazine QSR routinely checks the

Chapter 9, Problem 25

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You Explain It! Drive-Through Service Time The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. A 90% confidence interval that results from examining 607 customers in Taco Bells drive-through has a lower bound of 161.5 seconds and an upper bound of 164.7 seconds. What does this mean?

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