You conduct a study to understand whether happy people are more likely to exercise than sad people. In your sample of happy people. 25 chose to exercise and 10 chose to take a nap. In your sample of sad people, 5 chose to exercise and 35 chose to take a nap. (1) What is the null hypothesis? a. There is a difference in rates of exercise among happy and sad people. b. There is an association in rates of exercise among happy and sad people. c. There is not a difference in rates of exercise among happy and sad people. d. There is not an association in rates of happiness among those who exercise and those who nap. (2) What is the expected frequency for happy people who exercise? (3) What is the expected frequency for sad people who exercise? 4) What is the expected frequency for happy people who nap? 5) What ie tho oxpootod t
You conduct a study to understand whether happy people are more likely to exercise than sad people. In your sample of happy people. 25 chose to exercise and 10 chose to take a nap. In your sample of sad people, 5 chose to exercise and 35 chose to take a nap. (1) What is the null hypothesis? a. There is a difference in rates of exercise among happy and sad people. b. There is an association in rates of exercise among happy and sad people. c. There is not a difference in rates of exercise among happy and sad people. d. There is not an association in rates of happiness among those who exercise and those who nap. (2) What is the expected frequency for happy people who exercise? (3) What is the expected frequency for sad people who exercise? 4) What is the expected frequency for happy people who nap? 5) What ie tho oxpootod t
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Concept explainers
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Topic Video
Question
![QUESTION 2
You conduct a study to understand whether happy people are more likely to exercise than sad people. In your sample of happy people. 25 chose to exercise and 10 chose to
take a nap. In your sample of sad people, 5 chose to exercise and 35 chose to take a nap.
(1) What is the null hypothesis?
a. There is a difference in rates of exercise among happy and sad people.
b. There is an association in rates of exercise among happy and sad people.
c. There is not a difference in rates of exercise among happy and sad people.
d. There is not an association in rates of happiness among those who exercise and those who nap.
(2) What is the expected frequency for happy people who exercise?
(3) What is the expected frequency for sad people who exercise?
(4) What is the expected frequency for happy people who nap?
(5) What is the expected frequency for sad people who nap?
(6) What is your chi-square value?
(7) How many degrees of freedom are there?
(8) Assuming alpha is equal to .05, what is the critical value?
(9) What is your decision?
a. Reject the null and decide that happy people are more likely to exercise.
b. Fail to reject the null and decide that happy people are more likely to exercise.
c. Reject the null and decide that happy people are not more likely to exercise.
d. Fail to reject the null and decide that happy people are not more likely to exercise.
(10) What is the effect size (phi-coefficient)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6294d00b-6fa9-4eaf-8598-ef0c6ef6530b%2Feb1f7852-3e67-450c-a722-94f76f5c498e%2F0y223z_processed.jpeg&w=3840&q=75)
Transcribed Image Text:QUESTION 2
You conduct a study to understand whether happy people are more likely to exercise than sad people. In your sample of happy people. 25 chose to exercise and 10 chose to
take a nap. In your sample of sad people, 5 chose to exercise and 35 chose to take a nap.
(1) What is the null hypothesis?
a. There is a difference in rates of exercise among happy and sad people.
b. There is an association in rates of exercise among happy and sad people.
c. There is not a difference in rates of exercise among happy and sad people.
d. There is not an association in rates of happiness among those who exercise and those who nap.
(2) What is the expected frequency for happy people who exercise?
(3) What is the expected frequency for sad people who exercise?
(4) What is the expected frequency for happy people who nap?
(5) What is the expected frequency for sad people who nap?
(6) What is your chi-square value?
(7) How many degrees of freedom are there?
(8) Assuming alpha is equal to .05, what is the critical value?
(9) What is your decision?
a. Reject the null and decide that happy people are more likely to exercise.
b. Fail to reject the null and decide that happy people are more likely to exercise.
c. Reject the null and decide that happy people are not more likely to exercise.
d. Fail to reject the null and decide that happy people are not more likely to exercise.
(10) What is the effect size (phi-coefficient)?
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman