![subject](/tpl/images/cats/mat.png)
Mathematics, 03.01.2020 01:31 anonymous174
We are interested in determining whether the variances of the sales at two music stores (a and b) are equal. a sample of 25 days of sales at store a has a sample standard deviation of 30, while a sample of 16 days of sales from store b has a sample standard deviation of 20. at 95% confidence, the null hypothesis
a. should be rejected
b. should be revised
c. should not be rejected
d. none of these answers are correct.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet
Answers: 2
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 05:00
Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 06:00
What is the product of (4x + - 5)? a) -8x^2 - 26x - 15 b) -8x^2 + 26x - 15 c) -8x^2 - 26x + 15
Answers: 1
You know the right answer?
We are interested in determining whether the variances of the sales at two music stores (a and b) ar...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 14:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/es.png)
Spanish, 08.07.2019 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 14:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 14:00
![question](/tpl/images/cats/en.png)
English, 08.07.2019 14:00
![question](/tpl/images/cats/istoriya.png)
History, 08.07.2019 14:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.07.2019 14:00