Question: What is normal, when it comes to people's body temperatures? A random sample of 130 human body temperatures, provided by Allen Shoemaker in the Journal

What is normal, when it comes to people's body temperatures? A random sample of 130 human body temperatures, provided by Allen Shoemaker in the Journal of Statistical Education, had a mean of 98.25° and a standard deviation of 0.73°.
a. Construct a 99% confidence interval for the average body temperature of healthy people.
b. Does the confidence interval constructed in part a contain the value 98.6, the usual average temperature cited by physicians and others? If not, what conclusions can you draw?

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