Question

A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 792 customers in one fast-food chain's drive-through has a lower bound of 161.4 seconds and an upper bound of 165.0 seconds. What does this mean? Choose the correct answer below. O A. The mean drive-through service time of this fast-food chain is seconds % of the time. % confident that the mean drive-through service time of this fast-food chain is between seconds and seconds. OB. One can be OC. There is a % probability that the mean drive-through service time of this fast-food chain is between seconds and seconds. OD. One can be % confident that the mean drive-through service time of this fast-food chain is seconds.

Answer 1

solution

given that

lower bound =161.4

upper bound=165.0

confidence level=95

answer=one can be 95% confidence that the mean drive -through service time of this food chain is between 161.4 and 165.0 seconds

correct option is B