Use the confidence interval to find the estimated margin of error. Then find the sample mean.
Commute Times: A government agency reports a confidence interval of (26.2 & 30.1) when estimating the mean commute time (in minutes) for the population of workers in a city.
Margin of error = 30.1 - 26.2 /2
Sample mean = 26.2 + margin of error
= 26.2 + 1.95
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