Mathematics, 22.06.2019 12:00, strawberrymrmr3068
Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. a researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. a sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $120 and a sample of 23 automobiles 2 years old showed a sample standard deviation for annual repair costs of $100. let 4 year old automobiles be represented by population 1.state the null and alternative versions of the research hypothesis that the variance in annual repair costs is larger for the older automobiles.
Answers: 3
Mathematics, 21.06.2019 19:30, auviannadority13
Equation for the calculation double 2 and then add 5
Answers: 1
Mathematics, 21.06.2019 21:10, samiam61
Which question is not a good survey question? a. don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d. are you happy with the availability of electronic products in your state?
Answers: 2
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