Question
Q4. A researcher at the University of Illinois Chicago was interested in evaluating the effect of a social emotional learning program on adolescent aggression. Gathering
Q4. A researcher at the University of Illinois Chicago was interested in evaluating the effect of a social emotional learning program on adolescent aggression. Gathering data from schools she was able to determine that the population of adolescents in Chicago participated in about 8.3 fights per year. The researcher used this value as the population mean. Next, the researcher gathered data on a random sample of 121 adolescents who participated in the social emotional learning program and recorded information on the number of fights that the person got into during the year. The raw data is recorded in the google sheet named Fights and in a jamovi data file also named Fights. Using this information answer each of the questions below.
Using the data in the google sheet or jamovi dataset answer the following questions.
| Your Answer | Points Possible | |
| What is the independent variable? | Participation in the social-emotional learning program | 1 |
| What is the dependent variable? | The number of fights that adolescents get into during the year | 1 |
| What is the sample size? | A random sample of 121 adolescents | 1 |
| What is the mean for the sample? | 7.16 | 1 |
| What is the standard deviation for the sample? | 4.922 | 1 |
| What is the standard error? | 0.448 | 1 |
| Approximately 68% of the scores fall between what two values? | 2.235 and 11.079 | 1 |
Using the data above (Q4), write out the 5 steps of the hypothesis testing process and put the answer to each step.
| Your Answer | Points Possible | |
| What is Step 1? | Making Assumptions and meeting test requirements | 1 |
| Answers to Step 1. | Random Sampling of 121 adolescents | 3 |
| What is Step 2? | Stating the null hypothesis | 1 |
| Answers to Step 2. | Participation in the social-emotional learning program does not affect the number of fights adolescents get into during the yea | 1 |
| What is Step 3? | Selecting the sampling distribution and establishing a critical region | 1 |
| Answers to Step 3. | 2 | |
| What is Step 4? | Computing the test statistic | 1 |
| Answers to Step 4. | 1 | |
| What is Step 5? | Making a decision and interpreting the results of the test | 1 |
| Answers to Step 5. | T value=16.0, P<.001 | 2 |
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Quantitative Analysis For Management
Authors: Barry Render, Ralph M. Stair, Michael E. Hanna
11th Edition
9780132997621, 132149117, 132997622, 978-0132149112
