The us post office is interested in estimating the mean

Assignment Help Basic Statistics

Reference no: EM13602046

The U.S. Post Office is interested in estimating the mean weight of packages shipped using the overnight service. They plan to sample 300 packages. A pilot sample taken last year showed that the standard deviation in weight was about 0.15 pound. If they are interested in an estimate that has 95 percent confidence, what margin of error can they expect?

A. About 0.0003 pound

Approximately 0.017 pound

About 1.96

Can't be determined without knowing the population mean.

Reference no: EM13602046

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