A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 701 customers in one fast-food chain's drive-through has a lower bound of 159.8 seconds and an upper bound of 163.2 seconds. What does this mean? Choose the correct answer below. A. There is a 95% probability that the mean drive-through service time of this fast-food chain is between 159.8 seconds and 163.2 seconds. B. One can be 95% confident that the mean drive-through service time of this fast-food chain is 161.5 seconds. C. The mean drive-through service time of this fast-food chain is 161.5 seconds 95% of the time. D. One can be 95% confident that the mean drive-through service time of this fast-food chain is between 159.8
A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval that results from examining 701 customers in one fast-food chain's drive-through has a lower bound of 159.8 seconds and an upper bound of 163.2 seconds. What does this mean? Choose the correct answer below. A. There is a 95% probability that the mean drive-through service time of this fast-food chain is between 159.8 seconds and 163.2 seconds. B. One can be 95% confident that the mean drive-through service time of this fast-food chain is 161.5 seconds. C. The mean drive-through service time of this fast-food chain is 161.5 seconds 95% of the time. D. One can be 95% confident that the mean drive-through service time of this fast-food chain is between 159.8
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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Transcribed Image Text:A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 95% confidence interval
that results from examining 701 customers in one fast-food chain's drive-through has a lower bound of 159.8 seconds
and an upper bound of 163.2 seconds. What does this mean?
Choose the correct answer below.
A. There is a 95% probability that the mean drive-through service time of this fast-food chain is between 159.8
seconds and 163.2 seconds.
B. One can be 95% confident that the mean drive-through service time of this fast-food chain is 161.5 seconds.
C. The mean drive-through service time of this fast-food chain is 161.5 seconds 95% of the time.
D. One can be 95% confident that the mean drive-through service time of this fast-food chain is between 159.8
seconds and 163.2 seconds.
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