![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 04.03.2020 00:25, Kkampudiaa
A consumer advocacy group wants to determine whether there is a difference between the proportions of the two leading automobile models that need major repairs (more than $500) within 2 years of their purchase. A sample of 400 two year owners of model 1 is contacted and a sample of 500 two year owners of model 2 is contacted. the numbers x1 and x2 of owners who report that their cars needed major repairs within the first 2 years are 53 and 78 respectively. Test the null hypothesis that no difference exists between the proportions in population 1 and 2 needing major repairs against the alternative that a difference does exist. use o=.10
![answer](/tpl/images/cats/otvet.png)
Answers: 1
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30, kordejah348
Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles
Answers: 2
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30, youngboymark123
Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?
Answers: 1
Do you know the correct answer?
A consumer advocacy group wants to determine whether there is a difference between the proportions o...
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 17:50
![Konu](/tpl/images/cats/biologiya.png)
Biology, 20.01.2021 17:50
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mir.png)
World Languages, 20.01.2021 17:50
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.01.2021 17:50