a)It is claimed thata a vacuum cleaner uses an average of 46kwh per year. If a random sample of 34 homes included in a planned study indicates that vacuum cleaners use an average of 42 kwh per year with a standard deviation of 11.9 kwh, does this suggest that at he 0.05 level of significance thatvacuum cleaners use, on average, less than 46kwh annually? Assume the population of kwh to be normal b)what is it mean by Point Estimate?

a)It is claimed thata a vacuum cleaner uses an average of 46kwh per year. If a random sample of 34 homes included in a planned study indicates that vacuum cleaners use an average of 42 kwh per year with a standard deviation of 11.9 kwh, does this suggest that at he 0.05 level of significance thatvacuum cleaners use, on average, less than 46kwh annually? Assume the population of kwh to be normal b)what is it mean by Point Estimate?

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Description: a)It is claimed thata a vacuum cleaner uses an average of 46kwh per year. If a random sample of 34 homes included in a planned study indicates that vacuum cleaners use an average of 42 kwh per year with a standard deviation of 11.9 kwh, does this sug

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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