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Title: In order to estimate the average electric usage per month, a sample of 81 houses was selected and ... Post by: gracehiller11 on Jan 26, 2018 In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determined. Assume a population standard deviation of 450 kilowatt-hours. At 95 confidence, the size of the margin of error is
a. 1.96. b. 50.00. c. 98.00. d. 42.00. Title: In order to estimate the average electric usage per month, a sample of 81 houses was selected and ... Post by: gool34 on Jan 26, 2018 Content hidden
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