Statistics- Suppose we want to estimate the mean caffeine in coffee dispensed

| March 29, 2017

Question
Suppose we want to estimate the mean caffeine in coffee dispensed from a new coffee machine. Assume the population standard deviation is 3. A sample of 25 cups of coffee are analyzed and the mean caffeine (mg) is 110. (In this question the population standard deviation is known.)

(a) Construct a 95% confidence interval for the population mean

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