The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,290kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use moreelectricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 153of their customers and calculates that these customers used an average of 10,586 kWh of electricity last year.Assuming that the population standard deviation is 2509 kWh, is there sufficient evidence to support the powercompany's claim at the 0.05 level of significance?Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.Ho:u = 10,290Ha H10,290KeypadAnswerKeyboard Shortcuts

Given,sample size(n)=153sample mean(x¯)=10,586standard deviation(σ)=2509α=0.05

Answered: The U.S. Energy Information…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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