A trade magazine routinely checks the drive through service times of fast food restaurants An 80 confidence interval that

Question

A trade magazine routinely checks the drive through service times of fast food restaurants An 80 confidence interval that results from examining 683 customers in one fast food chain s drive through has a lower bound of 171 5 seconds and an upper bound of 175 1 seconds What does this mean Choose the correct answer below OA One can be OB There is a seconds and confident that the mean drive through service time of this fast food chain is seconds probability that the mean drive through service time of this fast food chain is between seconds OC One can be seconds and OD The mean drive through service time of this fast food chain is confident that the mean drive through service time of this fast food chain is between seconds seconds of the time

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