Problem 1 The job rating efficiency of an employee seems to be related to the number of weeks of employment. For a random sample of 10 employees, the following data were observed: Job 55 50 20 55 75 80 90 30 75 70 Efficiency Weeks of 2 4 1 3 5 9 12 2 7 5 Employmen t Run a SPSS program and answer the following research questions. (a) Find a regression line of weeks of employment on job efficiency. (b) If an employee has job efficiency rating of 68. Use the estimated regression line to predict his/her expected weeks of employment. (c) Interpret the regression coefficients. (d) Draw a scatter plot and interpret the graph. (e) Interpret the value of the coefficient of determination