Problem

Cholesterol The serum cholesterol levels of 50 subjects randomly selected from the L...

Cholesterol The serum cholesterol levels of 50 subjects randomly selected from the L.A. Heart Data, data from an epidemiological heart disease study on Los Angeles County employees,5 follow.

a. Construct a histogram for the data. Are the data approximately mound-shaped?

b. Use a t-distribution to construct a 95% confidence interval for the average serum cholesterol levels for L.A. County employees.

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Solutions For Problems in Chapter 10

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