Determine the margin of error with given probability

Reference no: EM13135842

In order to estimate the average electric usage per month, a sample of 196 houses was selected, and their electric usage determined.

A. Suppose the population standard deviation is 350 kilowatt hours. Determine the standard error of the mean.
B. With a .95 probability, determine the margin of error.

Reference no: EM13135842

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