Mini-Assignment 7

Directions

  1. Re-familiarize yourself with the CPS CODEBOOK  from Mini-Assigment 6.
  2. Import/load the CPS data set.
  3. Suppose you want to test whether number of years experience is significantly associated with wages earned per hour. During your last assignment, you found a sample correlation coefficient of r=0.09 and found that it was significantly different from 0. This indicated that there was a significant relationship between experience and wages.
  4. Construct a plot to determine whether gender appears to moderate the relationship between experience and wages earned per hour. Answer Questions 1 and 2 below.
  5. Run a test to determine whether experience is associated with wages for males and females separately. Answer Question 3 below.
  6. Now suppose you want to test whether gender is significantly associated with job satisfaction. Implement the appropriate statistical test and answer Question 4 below.
  7. Determine whether race moderates the relationship between gender and job satisfaction. Answer Questions 5 and 6 below.

Questions

Question 1: Which of the following graphs accurately depicts the relationship between wages earned per hour and experience broken down by gender?

Question 2: Based on the graph, does gender appear to moderate the relationship between wages earned per hour and experience?

Question 3: Based on the statistical tests, does gender seem to moderate the relationship between experience and wages earned per hour? Why?

Question 4: What is the test statistic, p-value, and appropriate conclusion to answer the question “Is gender significantly associated with job satisfaction?”

Question 5: Based on the graph (provided), does race moderate the relationship between gender and job satisfaction? Why?

Question 6: Based on the statistical tests, does race moderate the relationship between gender and job satisfaction? Why?

Submit your answers here.