19. The following is an incomplete F table summarizing the results of a study of the variance of life satisfaction scores among unemployed, retired, part-time, and full-time employees. Source of Variation SS df MS F Between groups 16 Within groups (error) 36 Total 128 1. Complete the F table and make a decision to retain or reject the null hypothesis. 2. Compute omega-squared (W2). 3. Is the decision to retain or reject the null hypothesis