okmarks Window Help a mathxl.com MAT201-FALL 12017 -Shaw Quiz: Module 6 Quiz Ras
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okmarks Window Help a mathxl.com MAT201-FALL 12017 -Shaw Quiz: Module 6 Quiz Rashad Massey 1061 71:41 PM This Question: 1 pt Submit Quiz 5 of 6(1 This Quiz: 14 pts A trade magazine routinely checks the drive-through service fast-food chain's drive-through has a lower bound of 165 Question Help a .4 seconds and an upper bound of 168.8 seoonds. What does this mean? Choose the correct answer below. 0 A, One can be 90% oonfident that the mean drive through service time of this fast-foodchan is 1671 seconds. O B. There is a 90% probability that the mean drive-through service time of this fast-food chain is between 165.4 ° C. The mean drive through service time of this fast food chan is 167 1 seconds 90% of lhe time. D. One can be 90% confident that the mean drive-through service time of his fasilod chan is between 1054 seconds and teas seconds. seconds and 168.8 seconds.Explanation / Answer
The correct answer is option D.
i.e. one can be 90% confidence that the mean drive-through service time of this fast-food chain is between 165.4 seconds and 168.8 seconds.
This is the general and most common interpretation of the confidence interval.
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