Prediction interval-caffeine content of next cup of coffee

Reference no: EM131808726

Question: A cup of coffee is found to have only 72.8 milligrams of caffeine. Test (at the 5% level) whether the beans used could have come from the same population as those that generated the data in problem.

Problem: The amount of caffeine (milligrams) in randomly sampled cups of coffee was as follows:

112:8, 86:4, 45:9, 110:3, 100:3, 93:3, 101:9, 115:7, 92:5, 117:3, 105:6, 81:6

a. Find the one-sided 99% confidence interval for the population mean caffeine content of a cup of coffee that claims "at least...."

b. Find the one-sided 99% prediction interval for the caffeine content of the next cup of coffee, again claiming "at least...."

Reference no: EM131808726

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