[Steps Shown] In a study of 13 insurance sales reps from a certain large city, the average age of the group was 49.3 and the standard deviation was 4.1
Question: In a study of 13 insurance sales reps from a certain large city, the average age of the group was 49.3 and the standard deviation was 4.1 years. Find the 99% confidence interval of the population mean age of all insurance sales reps in that city. Interpret this confidence interval within the context of the problem. (similar to example 7.6 on page 338)
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