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.
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.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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