Question: Using software to compute a confidence interval. In Example 7.1 (page 398) we calculated the 95% confidence interval for the average household expenditure for landline

Using software to compute a confidence interval. In Example 7.1

(page 398) we calculated the 95% confidence interval for the average household expenditure for landline telephone service in your community. Use software to compute this interval and verify that you obtain the same interval.

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