Question: What is the probability that the sample mean cholesterol level is between 186 and 192? The mean serum cholesterol level for U.S. adults was 198,

What is the probability that the sample mean cholesterol level is between

186 and 192?

The mean serum cholesterol level for U.S. adults was 198, with a standard deviation of

39.3 (the units are milligrams per deciliter). A simple random sample of

106 adults is chosen. UseCumulative Normal Distribution Tableif needed. Round the answers to at least four decimal places.

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