## Elementary Statistics (12th Edition)

Published by Pearson

# Chapter 7 - Estimates and Sample Sizes - 7-3 Estimating a Population Mean - Basic Skills and Concepts: 9

#### Answer

8.104 km < $\mu$ < 11.512 km Because the sample size is greater than 30, the confidence interval yields a reasonable estimate of m, even though the data appear to be from a population that is not normally distributed.

#### Work Step by Step

8.104 km < $\mu$ < 11.512 km Because the sample size is greater than 30, the confidence interval yields a reasonable estimate of m, even though the data appear to be from a population that is not normally distributed.

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