## Elementary Statistics (12th Edition)

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.
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.