# Chapter 7 - Estimates and Sample Sizes - 7-3 Estimating a Population Mean - Page 350: 3

We are 95% confident that the mean duration time of eruptions of the geyser is between 233.4 and 256.65 seconds.

#### Work Step by Step

The correct statement is above. $\mu$ is between 233.4 and 256.65 seconds.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.