{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# hw2 - 2 For the data gathered in class Do this exercise...

This preview shows page 1. Sign up to view the full content.

Business and Economics Statistics I Homework #2 Due September 11 1. A social worker at the county prison, Ray N. Force, is trying to create a more positive social climate within the prison. He decides to use operant conditioning to increase the frequency of prisoners saying thank you for positive actions by others. He uses cigarettes as reinforcers for 10 prisoners in Wing A and chef’s special oat bran muffins for the 20 prisoners in Wing B. After one week on a 100% reinforcement schedule he count the number of appropriately emitted thank-yous during one day. Group A: 2, 7, 8, 5, 6, 1, 7, 6, 6, 2 Group B: 2, 6, 2, 7, 6, 5, 1, 6, 8, 7, 2, 7, 8, 2, 6, 6, 5, 6, 1, 7 a. What is the mean for each group? b. What is the variation and variance for each group? c. If the variation and variance are both measures of variability, how do you explain the groups being different in variation, but the same in variance.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2. For the data gathered in class: Do this exercise twice, once with your group and once with one of the other groups. a. Compute the grand mean of the time values by dominant and non-dominant hand. b. Compute the total amount of variation. c. Compute the variation, variance, and standard deviation of the times for the dominant hand and then again for the non dominant hand. d. What is the unaccountable variation and how much variation is accountable by knowing which hand was used? e. Calculate eta squared f. What other independent variables might account for some of the variability? Explain. Your group Second group Grand mean SST SSacct SSunacct Eta square Variances for dominant hand and for non-dominant hand Standard Deviations for dominant and non-dominant Variations for dominant and non-dominant...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern