Question: A simple random sample of 125 SAT scores has a mean of 1522. Assume that SAT scores have a standard deviation of 333. a. Construct

A simple random sample of 125 SAT scores has a mean of 1522. Assume that SAT scores have a standard deviation of 333.

a. Construct a 95% confidence interval estimate of the mean SAT score.

b. Construct a 99% confidence interval estimate of the mean SAT score.

c. Which of the preceding confidence intervals is wider? Why?

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