Question
A coffee vending machine fills 100 cups of coffee before it has to be refilled. On Monday, the mean number of ounces in a filled
A coffee vending machine fills 100 cups of coffee before it has to be refilled. On Monday, the mean number of ounces in a filled cup of coffee was 7.5. The sample standard deviation turned out to be 0.5 ounces. Find 95% and 99% confidence intervals for the mean number of ounces of coffee dispensed by the machine.
Calculate a 95% confidence interval.
Calculate a 99% confidence interval.
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Essentials of Business Analytics
Authors: Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
2nd edition
1305627733, 978-1305861817, 1305861817, 978-0357688960, 978-1305627734
