The energy consumption for 90 gas-heated homes during a winter heating season is given in Table 6E.16.

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The energy consumption for 90 gas-heated homes during a winter heating season is given in Table 6E.16. The variable reported is BTU/number of heating degree days.

(a) Calculate the sample mean and standard deviation of energy usage.

(b) Construct a histogram of the energy usage data and comment on the shape of the data distribution.

(d) What proportion of the energy usage data is above the average usage plus 2 standard deviations?

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Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Jun 30, 2018 01:50 AM

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The energy consumption for 90 gas-heated homes during a winter heating season is given in Table 6E.16.

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a The sample mean is 10038 and the sample standard deviation is 2868 b The histo...View the full answer

Applied Statistics And Probability For Engineers

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