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a trade magazine routinely checks the drive through service times of fast food restaurants. a 95%...

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Statistics

a trade magazine routinely checks the drive through servicetimes of fast food restaurants. a 95% confidence interval thatresults from examining 605 customers in one fast food chains drivethrough has a lower bound of 170.1 seconds and upper bound of 173.1seconds. what does this mean?

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4.2 Ratings (493 Votes)
Confidence interval is a range of values that contain an unknownpopulation parameter Confidence interval contains the true valueof the parameter when a random sample is drawn many timesFor the large samples the population parameter with moreprecision can be obtained Therefore confidence interval is    See Answer
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