driving back and forth to campus. Your instructor hypothesizes that people with a shorter commute time will have higher degrees of job satisfaction. Randomly sampling 600 Valley commuters, the instructor finds the following data listed in frequencies: Table 2: Commuters by Length of Commute and Job Satisfaction Job Satisfaction Number Who Commute 20 Minutes or Less Number Who Commute 21 to 40 Minutes Number Who Commute 41 Minutes or More Total Number for Each Level of Job Satisfaction Dissatisfied 10 60 140 210 Neutral 45 59 51 155 Satisfied 145 60 30 235 Total Number for Each Commute Time Range 200 179 221 600
Your statistics instructor often ponders the relationship between commute time and job satisfaction while driving back and forth to campus. Your instructor hypothesizes that people with a shorter commute time will have higher degrees of job satisfaction. Randomly sampling 600 Valley commuters, the instructor finds the following data listed in frequencies:
Table 2: Commuters by Length of Commute and Job Satisfaction
|
Job Satisfaction |
Number Who Commute 20 Minutes or Less |
Number Who Commute 21 to 40 Minutes |
Number Who Commute 41 Minutes or More |
Total Number for Each Level of Job Satisfaction |
|
Dissatisfied |
10 |
60 |
140 |
210 |
|
Neutral |
45 |
59 |
51 |
155 |
|
Satisfied |
145 |
60 |
30 |
235 |
|
Total Number for Each Commute Time |
200 |
179 |
221 |
600 |
Your instructor calculates a chi-square of 202.5 with four degrees of freedom.
- Change frequencies to column percentages.
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