Question: A simple random sample from a population with a normal distribution of 107 body temperatures has x = 98.30 F and s = 0.67 F.

A simple random sample from a population with a normal distribution of 107 body temperatures has x = 98.30 F and s = 0.67 F. Construct an 80% confidence interval estimate of the standard deviation of body temperature of all healthy humans.

? F < < ? F

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