The trade magazine QSR routinely checks the drive through

Last updated: 12/2/2023

The trade magazine QSR routinely checks the drive through service times of fast food restaurants A 99 confidence interval that results from examining 739 customers in Taco Bell s drive through has a lower bound of 158 7 seconds and an upper bound of 163 5 seconds Complete parts a through c a What is the mean service time from the 739 customers The mean service time from the 739 customers is 161 1 seconds Type an integer or a decimal Do not round b What is the margin of error for the confidence interval The margin of error is 2 4 seconds Type an integer or a decimal Do not round c Interpret the confidence interval Select the correct choice below and fill in the answer boxes to complete your choice Type integers or decimals Do not round OA One can be confident that the mean drive through service time of Taco Bell is between and seconds OB There is a probability that the mean drive through service time of Taco Bell is between and seconds OC The mean drive through service time of Taco Bell is OD One can be seconds of the time confident that the mean drive through service time of Taco Bell is seconds seconds seconds