![subject](/tpl/images/cats/mat.png)
Mathematics, 17.04.2020 16:43 dounutalien
It is known that the average tuition per semester at colleges in Virginia is $3712. Suppose we take a sample of 15 colleges and find that the average tuition per semester is $4512 with a sample standard deviation of $595. We are interested in testing if the average amount of tuition is increasing.
Using the sample of 15 people, what would the 95% confidence interval be for the population mean?
What are the null and alternative hypotheses?
What is the critical value at 95% confidence?
Calculate the test statistic.
Find the p-value
What conclusion would be made here at the 95% confidence level?
Would my conclusion change if I changed alpha to .01?
![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 17:30
Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
Need on this geometry question. explain how you did it.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
Solve this and show youβre work step by step ! -5 3/4+3h< 9 1/4 -
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Can you me find the missing length. i attached an image.
Answers: 1
You know the right answer?
It is known that the average tuition per semester at colleges in Virginia is $3712. Suppose we take...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 06.04.2020 23:12
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:12
![question](/tpl/images/cats/biologiya.png)
Biology, 06.04.2020 23:12
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:13
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:13
![question](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:13