A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 768 customers in one fast-food chain's drive-through has a lower bound of 174.0 seconds and upper bound of 177.2 seconds. What does this mean? Choose the correct answer below

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A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 768 customers in one fast-food chain's drive-through has a lower bound of 174.0 seconds and a
upper bound of 177.2 seconds. What does this mean?
Choose the correct answer below.
A. The mean drive-through service time of this fast-food chain is
seconds
% of the time.
B. There is a
% probability that the mean drive-through service time of this fast-food chain is between
seconds and
seconds.
O C. One can be
% confident that the mean drive-through service time of this fast-food chain is
seconds.
O D. One can be
% confident that the mean drive-through service time of this fast-food chain is between
seconds and
seconds.
Transcribed Image Text:A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 768 customers in one fast-food chain's drive-through has a lower bound of 174.0 seconds and a upper bound of 177.2 seconds. What does this mean? Choose the correct answer below. A. The mean drive-through service time of this fast-food chain is seconds % of the time. B. There is a % probability that the mean drive-through service time of this fast-food chain is between seconds and seconds. O C. One can be % confident that the mean drive-through service time of this fast-food chain is seconds. O D. One can be % confident that the mean drive-through service time of this fast-food chain is between seconds and seconds.
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