Excel File: data05-21.xlsx The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives and IS middle managers range from a low of 1 (very dissatisfied) to a high of 5 (very satisfied). Probability Job Satisfaction Score IS Senior Executives IS Middle Managers .05 .04 2 .09 .10 .03 .12 42 .46 .41 28 a. What is the expected value of the job satisfaction score for senior executives (to 2 decimals)? b. What is the expected value of the job satisfaction score for middle managers (to 2 decimals)? c. Compute the variance of job satisfaction scores for executives and middle managers (to 2 decimals). Executives Middle managers .83 .28 d. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives Middle managers .83 .28 e. What comparison can you make about the job satisfaction of senior executives and middle managers? - Select your answer-