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Question 25 pts The standard deviation of the population of airline departure delays is s 27.7 minutes. Initially we choose an SRS of 100 departures....
Starbucks serves several sizes of coffee. The Tall is 12 fluid oz. There is some variation from cup to cup because the filling machinery is not perfectly precise. Data on past production shows that the distribution of the contents is close to Normal, with standard deviation 0.6 oz. To assess the state of the filling process at a given Starbucks store, 60 cups were randomly selected over the course of a week. The sample mean content is found to be 11.87 oz. Is this value convincing evidence that the mean fill of all Tall cups of coffee produced by the current process differs from the desired level of 12.0 oz.?
The hypotheses: Ho: 12.0 and HA: 12.0. The estimate is the sample mean.
Calculate P-value of the test. Note: you may need to use Excel to perform this calculation.
o 0.0933
o 0.0783
o 0.0500
o 0.1187
o 0.0466
