A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 95 % confidence interval that results from examining 745 customers in one fast-food chain's drive-through has a lower bound of 177.6 seconds and an upper bound of 181.0 seconds. What does this mean?

Question

Dilly Dally

Mathematics

15 August, 00:01

A trade magazine routinely checks the drive-through service times of fast-food restaurants. Upper A 95 % confidence interval that results from examining 745 customers in one fast-food chain's drive-through has a lower bound of 177.6 seconds and an upper bound of 181.0 seconds. What does this mean?

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Answers (1)

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Allen Briggs · Answer 1

-A person can be 95% confident that the mean drive through service time lies between 177.6 seconds and 181.0 seconds.

Step-by-step explanation:

- Confidence level is the degree of certainty we have on a particular statistic.

-The 95% confidence interval means that we are 95% confident that the mean drive through service time is lies between 177.6 seconds and 181.0 minutes.