The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,897 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 184 of their customers and calculates that these customers used an average of 11,121 kWh of electricity last year. Assuming that the population standard deviation is 1856 kWh, is there sufficient evidence to support the power company's claim at the 0.10 level of significance?**Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.**$H_0: \mu = 10,897$$H_a: \mu$ _______ 10,897- ◯ >- ◯ ≠- ◯ <**Answer**[The students would be expected to fill in the blank and select the appropriate alternative hypothesis symbol.]

GivenMean(x)=11121standard deviation(σ)=1856sample size(n)=184α=0.10

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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