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 (very dissatisfied) to a high of (very satisfied). Excel File: data05-21.xlsx 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 d. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives Middle managers e. What comparison can you make about the job satisfaction of senior executives and middle managers? Check My Work