![subject](/tpl/images/cats/mat.png)
Mathematics, 13.10.2021 23:30 tdluong157
She interviews 34 randomly selected people who train in groups, and finds that they run a mean of 44.2 miles per week. Assume that the population standard deviation for group runners is known to be 2.5 miles per week. She also interviews a random sample of 49 people who train on their own and finds that they run a mean of 45.1 miles per week. Assume that the population standard deviation for people who run by themselves is 1.1 miles per week. Test the claim at the 0.01 level of significance. Let group runners training for marathons be Population 1 and let individual runners training for marathons be Population 2.
Required:
Compute the value of the test statistic.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Having a hard time understanding this question (see attachment).
Answers: 2
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:00
The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.
Answers: 3
You know the right answer?
She interviews 34 randomly selected people who train in groups, and finds that they run a mean of 44...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
Spanish, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
Mathematics, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 29.09.2019 06:30
![question](/tpl/images/cats/mat.png)
Mathematics, 29.09.2019 06:30
![question](/tpl/images/cats/biologiya.png)
Biology, 29.09.2019 06:30
![question](/tpl/images/cats/istoriya.png)
History, 29.09.2019 06:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 29.09.2019 06:30