Question: 15.43 Normal body temperature? Here are the daily Bin average body temperatures (degrees Fahrenheit) for 20 healthy adults:'^ 98.74 97.42 98.54 98.83 97.30 98.33 96.80

15.43 Normal body temperature? Here are the daily Bin average body temperatures (degrees Fahrenheit) for 20 healthy adults:'^

98.74 97.42 98.54 98.83 97.30 98.33 96.80 97.84 97.87 98.12 100.27 97.48 97.89 97.90 98.92 98.09 99.64 98.33 97.87 97.88

(a) Make a stemplot of the data. The distribution is roughly symmetric and single-peaked. There is one mild outlier. We expect the distribution of the sample mean x to be close to Normal.

(b) Do these data give evidence that the mean body temper ature for all healthy adults is not equal to the traditional 98.6 degrees? Follow the four-step process for significance tests (page 246). (Suppose that body temperature varies Normally with standard deviation 0.7 degree.)

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