A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval...

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A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval...

A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 767 customers in one fast-food chain's drive-through has a lower bound of 168.5 seconds and an upper bound of 172.1 seconds. What does this mean?

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