![subject](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 16:40 JGottem6489
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 automobiles years old showed a sample standard deviation for annual repair costs of and a sample of automobiles years old showed a sample standard deviation for annual repair costs of . Let year old automobiles be represented by population . a. State the null and alternative versions of the research hypothesis that the variance in annual repair costs is larger for the older automobiles. b. Conduct the hypothesis test at a level of significance. Calculate the value of the test statistic (to 2 decimals).
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:40
What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
Select all of the following expressions that are equal to 2.5.
Answers: 3
![question](/tpl/images/cats/mat.png)
You know the right answer?
Most individuals are aware of the fact that the average annual repair cost for an automobile depends...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 06.10.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 06.10.2019 05:30
![question](/tpl/images/cats/mir.png)
World Languages, 06.10.2019 05:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.10.2019 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mir.png)
World Languages, 06.10.2019 05:30
![question](/tpl/images/cats/istoriya.png)
History, 06.10.2019 05:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)