subject
Mathematics, 08.05.2021 01:00 erichyatt

Kelly wanted to investigate stress levels among college students. Specifically, she wanted to know if freshmen and seniors experienced different levels of stress. She asked 12 freshmen and 12 seniors to complete a survey designed to measure stress levels. Scores on the stress survey were normally distributed and measured on an interval scale where higher numbers indicate greater levels of stress. Choose the appropriate test statistic. Use Ξ± = . 05. The data are as follows: Freshmen: 20, 43, 56, 76, 45, 87, 12, 34, 65, 58, 42, 100
Seniors: 90, 30, 80, 60, 64, 37, 84, 27, 87, 54, 38, 92
1. Compute the chosen test statistic.
A. βˆ’0.85
B. 10.35
C. 7.53
D. 2.01
2. Should you reject or fail to reject the null hypothesis?
A. reject
B. fail to reject
3. Compute the effect size for this study.
A. βˆ’0.85
B. βˆ’0.10
C. βˆ’0.89
D. βˆ’0.35
4. Which of the following is the best summary of the results?
A. Seniors report significantly more stress than freshmen.
B. Freshmen report significantly more stress than seniors.
C. There is no difference between the reported stress levels between freshmen and seniors.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4
Answers: 1
question
Mathematics, 21.06.2019 19:20
Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5
Answers: 1
question
Mathematics, 21.06.2019 19:20
Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)
Answers: 1
question
Mathematics, 21.06.2019 20:00
Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?
Answers: 3
You know the right answer?
Kelly wanted to investigate stress levels among college students. Specifically, she wanted to know i...
Questions
question
Mathematics, 01.03.2020 07:22
Questions on the website: 13722366