Use the confidence interval to find the esitmated margin of error. Then find the

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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.

Apr 10th, 2015

Margin of error = 30.1 - 26.2 /2

                         =. 1.95

Sample mean = 26.2 + margin of error

                       = 26.2 + 1.95

                       =  28.15

Apr 10th, 2015

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Niru

Apr 10th, 2015

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