A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 625 customers in one fast-food chain's drive-through has a lower bound of 169.7 seconds and an upper bound of 173.5 seconds. What does this mean? Choose the correct answer below OA One can be 80% confident that the mean drive-through service time of this fast-food chain is 171.6 seconds OB. There is an 80% probability that the mean drive-through service time of this fast-food chain is between 169.7 seconds and 173.5 seconds OC. One can be 80% confident that the mean drive-through service time of this fast-food chain is between 169.7 seconds and 173.5 seconds OD. The mean drive-through service time of this fast-food chain is 171.6 seconds 80% of the time.

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