Assume that each sample is a simple random sample obtained from a population with a normal…

Assume that each sample is a simple random sample obtained from a population with a normal distribution.Home Energy Consumption Refer to Data Set 12 in Appendix B and use the sample amounts of home energy consumption (in kWh) to construct a 99% confidence interval estimate of the standard deviation of all energy consumption amounts.Data Set 12: Electricity Consumption of a HomeAll measurements are from the author’s home.STATDISK:Data set name is Electric.Minitab:Worksheet name is ELECTRIC.MTW.Excel:Workbook name is ELECTRIC.XLS.TI-83/84 Plus:App name is ELECTRIC and the file names are the same as for text files.Text file names:Text file names are KWH, COST, HDD, ADT. Time PeriodElectricity Consumed (kWh)Cost (dollars)Heating Degree DaysAverage Daily Temp (°F)Year 1: Jan/Feb3637295.33222629Year 1: March/Apr2888230.08161637Year 1: May/June2359213.4347957Year 1: July/Aug3704338.161974Year 1: Sept/Oct3432299.7618466Year 1: Nov/Dec2446214.44110547Year 2: Jan/Feb4463384.13235128Year 2: March/Apr2482295.82150841Year 2: May/June2762255.8565754Year 2: July/Aug2288219.723568Year 2: Sept/Oct2423256.5930862Year 2: Nov/Dec2483276.13125742Year 3: Jan/Feb3375321.94242126Year 3: March/Apr2661221.11184134Year 3: May/June2073205.1643858Year 3: July/Aug2579251.071572Year 3: Sept/Oct2858279.8015267Year 3: Nov/Dec2296183.84102848Year 4: Jan/Feb2812244.93196733Year 4: March/Apr2433218.59162739Year 4: May/June2266213.0953766Year 4: July/Aug3128333.492671Year 4: Sept/Oct3286370.35116 Year 4: Nov/Dec2749222.791457 Year 5: Jan/Feb3427316.18253 Year 5: March/Apr57877.391811 Year 5: May/June3792385.44632 Year 5: July/Aug3348334.7235 Year 5: Sept/Oct2937330.47215 Year 5: Nov/Dec2774237.001300 Year 6: Jan/Feb3016303.782435 Year 6: March/Apr2458263.751540 Year 6: May/June2395207.08395 Year 6: July/Aug3249304.8326 Year 6: Sept/Oct3003305.67153 Year 6: Nov/Dec2118197.651095 Year 7: Jan/Feb4261470.022554 Year 7: March/Apr1946217.361708 Year 7: May/June2063217.08569 Year 7: July/Aug4081541.013 Year 7: Sept/Oct1919423.1758 Year 7: Nov/Dec2360256.061232 Year 8: Jan/Feb2853309.402070 Year 8: March/Apr2174254.911620 Year 8: May/June2370290.98542 Year 8: July/Aug3480370.7429 Year 8: Sept/Oct2710329.72228 Year 8: Nov/Dec2327229.051053 

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