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Answer 囲 Tables Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is sufficient evidhce at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. Submit Answer

Answer 囲 Tables Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is sufficient evidhce at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. Submit Answer

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,092 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 189 of their customers and calculates that these customers used an average of 10,628 kWh of electricity last year. Assuming that the population standard deviation is 2970 kWh, is there sufficient evidence to support the power company's claim at the 0.02 level of significance? Step 3 of 3: Draw a conclusion and interpret the decision. Answer O Tables E Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is sufficient evidChce at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We reject the null hypothesis and conclude that there is insufficiernt evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. Submit Answer O 2021 Hawkes Learning ere to search (2 2 64°F Clear prt sc delete home 24 backspace lock %3D E RT YU enter pause 1 shi alt ctri USE YOUR SMARTPHONE FOR Reviews-Videes-Featur Specs Support
Transcribed Image Text:The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,092 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 189 of their customers and calculates that these customers used an average of 10,628 kWh of electricity last year. Assuming that the population standard deviation is 2970 kWh, is there sufficient evidence to support the power company's claim at the 0.02 level of significance? Step 3 of 3: Draw a conclusion and interpret the decision. Answer O Tables E Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is sufficient evidChce at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. We reject the null hypothesis and conclude that there is insufficiernt evidence at a 0.02 level of significance to support the power company's claim that the mean amount of electricity for their residents is more than the national average. Submit Answer O 2021 Hawkes Learning ere to search (2 2 64°F Clear prt sc delete home 24 backspace lock %3D E RT YU enter pause 1 shi alt ctri USE YOUR SMARTPHONE FOR Reviews-Videes-Featur Specs Support
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