The Edison Electric Institute has published figures on the annual number of kilowatt hours expended by various home appliances. It is claimed that a vacuum cleaner expends an average of 46 kilowatt hours per year. A random sample of 12 homes included in a planned study indicates that vacuum cleaners expend an average of 42 kilowatt hours per year with a standard deviation of 11.0 kilowatt hours. This sample data is to be tested with the goal of showing that the vacuum cleaners expend on average less than 46 kilowatt hours annually. Test at the 0.05 level of significance.a. To test the hypothesis, his null and alternative hypotheses are: \( H_0: \) ______________ and \( H_1: \) __________________ . b. What is the appropriate decision parameter at the 95% level of confidence? (“the null will be rejected if the z- or t- value is…).c. Determine the sample statistic using the sample data above.d. Based on this hypothesis test, should the null hypothesis be rejected? Explain why or why not.e. Obtain the confidence interval, at the 95% level.

We want to find the null hypothesis, alternate hypothesis, decision rule and sample test statistics…

Answered: The Edison Electric Institute has…

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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A common design requirement is that an environment must fit the range of people who fall between the 5th percentile for women and the 95 percentile for men. In designing an assembly work table, the sitting knee height must be considered, which is the distance from the bottom of the feet to the top of the knee. Males have sitting knee heights that are normally distributed with a nean ofc21.7 in. And standard deviation of 1.2 in. females have sitting knee height that are normally distributed with a mean of 19.2 in. And a standard deviation of 1.1 in. Use the information to answer the following questions What is the minimum table clearance required to satisfy the requirements of fitting 95%?
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