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?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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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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