a. What is the expected value of the job satisfaction score for senior executives (to 2 decimals)? 4.05 b. What is the expected value of the job satisfaction score for middle managers (to 2 decimals)? 3.84 c. Compute the variance of job satisfaction scores for executives and middle managers (to 2 decimals). Executives 1.79 Middle managers 1.14 d. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives 1.34 Middle managers 1.07 e. What comparison can you make about the job satisfaction of senior executives and middle managers? Senior executives have higher satisfaction with more variation

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The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives and middle managers range from a low of 1 (very dissatisfied) to a high of 5 (very satisfied).
Excel File: data05-21.xlsx
a. What is the expected value of the job satisfaction score for senior executives (to 2 decimals)?
4.05
b. What is the expected value of the job satisfaction score for middle managers (to 2 decimals)?
3.84
c. Compute the variance of job satisfaction scores for executives and middle managers (to 2 decimals).
Executives
1.79
Executives
Middle managers
d. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals).
Job Satisfaction
Score
1
2
3
4
5
1.14
1.34
Middle managers
1.07
e. What comparison can you make about the job satisfaction of senior executives and middle managers?
Senior executives have higher satisfaction with more variation ✓
IS Senior
Executives
0.05
0.09
0.03
0.42
0.41
Probability
IS Middle
Managers
0.04
0.10
0.12
0.46
0.28
Transcribed Image Text:The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives and middle managers range from a low of 1 (very dissatisfied) to a high of 5 (very satisfied). Excel File: data05-21.xlsx a. What is the expected value of the job satisfaction score for senior executives (to 2 decimals)? 4.05 b. What is the expected value of the job satisfaction score for middle managers (to 2 decimals)? 3.84 c. Compute the variance of job satisfaction scores for executives and middle managers (to 2 decimals). Executives 1.79 Executives Middle managers d. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Job Satisfaction Score 1 2 3 4 5 1.14 1.34 Middle managers 1.07 e. What comparison can you make about the job satisfaction of senior executives and middle managers? Senior executives have higher satisfaction with more variation ✓ IS Senior Executives 0.05 0.09 0.03 0.42 0.41 Probability IS Middle Managers 0.04 0.10 0.12 0.46 0.28
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