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Mathematics, 06.05.2020 00:00 lizzyhearts
A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 90% confidence interval that results from examining 624 customers in one fast-food chain's drive-through has a lower bound of 166.6 seconds and an upper bound of 170.0 seconds. What does this mean?
A.
One can be 90% confident that the mean drive-through service time of this fast-food chain is between 166.6 seconds and 170.0 seconds.
B.
The mean drive-through service time of this fast-food chain is 168.3 seconds 90% of the time.
C.
One can be 90% confident that the mean drive-through service time of this fast-food chain is 168.3 seconds.
D.
There is a 90% probability that the mean drive-through service time of this fast-food chain is between 166.6 seconds and 170.0 seconds.
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A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A...
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