![subject](/tpl/images/cats/mat.png)
Mathematics, 25.02.2020 17:37 sarahgilbert1468
Carver Memorial Hospital's surgeons have a new procedure that they think will decrease the time to perform an appendectomy.
A sample of 8 appendectomies using the old method had a mean of 38 minutes with a variance of 36 minutes, while a sample of 10 appendectomies using the experimental method had a mean of 29 minutes with a standard deviation of 16 minutes.
A) For the hypothesis H1: μOld > μNew; assuming unequal variances at α = .05, the test statistic is .
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/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 20:30
What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:30
The difference between the measures of two complementary angles is 14. find the measure of both angles.
Answers: 1
You know the right answer?
Carver Memorial Hospital's surgeons have a new procedure that they think will decrease the time to p...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00