A trade magazine routinely checks the drive-through service times of fast-food r

Question

A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 532 customers in one fast-food chain's drive-through has a lower bound of 161.6 seconds and an upper bound of 165.2 seconds. What does this mean?

Choose the correct answer below.

A. One can be [ ]% confident that the mean drive-through service time of this fast-food chain is between [ ] seconds and [ ] seconds.

B. There is a [ ]% probability that the mean drive-through service time of this fast-food chain is between [ ] seconds and [ ] seconds.

C. One can [ ]% confident that the mean drive-through service time of this fast-food chain is [ ] seconds.

D. The mean drive-through service time of this fast-food chain is [ ] seconds [ ]% of the time.

Explanation / Answer

D. The mean drive-through service time of this fast-food chain is [ ] seconds [80 ]% of the time.

is the correct answer. or correct interpretation. of the statment

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