Question: A sample of 8 items has an average fat content of 18.6 grams and a sample standard deviation of 2.4 grams. Assuming a normal distribution

A sample of 8 items has an average fat content of 18.6 grams and a sample standard deviation of 2.4 grams. Assuming a normal distribution

(a) Construct a 99 percent confidence interval for the population mean.

(b) Interpret the CI in terms of the question.

(c) Is the estimate in part (a) valid? Explain.

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