Hi there Just doing some practice questions and need some assistance. Only 4 questions. Please hand write them. Thanks!
Questions 8 to 12
The textbook is a quantitative data analysis book.
The material consists of statistics and data.
A course research project asks you to investigate the relationship between precarious work and mental health. The 2012 CCHS asks respondents to indicate whether they \"Agree,\" \"Neither agree nor disagree," or \"Disagree\" with this statement: \"Your job securitywas good.\" You think people's answers to this question might be related to their positive mental-health score. a. Determine which variable should be treated as independent and which should be treated as dependent. b. State a non-directional research hypothesis that you can test. c. State the null hypothesis for the research hy- pothesis you identied in (b). Overall, a random sample of 1,636 workers who re- sponded to the 2012 CCHS have an average positive mental-health score of 54.5 (s.d. = 10.3). Among people who agreed that they have good job security, the average is 55.2 (s.d. = 9.9, n = 1,286). Among people who neither agreed nor disagreed that they have good job security, the average is 52.5 (s.d. = 11.1, n = 149), and among people who disagreed that they have good job security, the average is 51.9 (s.d. = 11.3, n = 201). a. Describe the magnitude of the relationship be- tween positive mental-heaith scores and percep- tions of job security in the sample, that is, the size of the differences between the three means. b. Calculate Cohen's d for the difference between the average mental-health score of the group who agree they have good job security and the group who disagree that they have good job sec~ urity. Would you describe the effect as small, medium, or large? For the relationship between positive mental-health scores and perceptions of job security described in question 8, the total sum of squares is 172,658 and the between group sum of squares is 2,504. a. Find the within group sum of squares. b. Calculate the between group degrees of freedom and the within group degrees of freedom. c. Calculate the F-statistic. (1. Using an alpha value of 0.05. the critical value of an F-statistic with these degrees of free- dom is 3.00. Based on your answer to (c), state PART II | Making Claims about Populations Table 3.7 The Results of Post-Hoe Tests for the Relationship between Perceived Job Security and Positive Mental-Health Scores, Using the Least Signicant Differences Method Good job security: Agree Good job security: Neither Good job security: Disagree Good job security: Agree Good job security: Neither Good job security: Disagree 'lndlcates that the mean difference is signicant atthe I)
