A professor at the University of Iowa was interested in evaluating whether domestic dispute calls were more dangerous to officers than other types of calls. Collecting information on call for service and whether the call resulted in officer injury. The data is displayed in the contingency table below. Type of Call Domestic Dispute Not a Domestic Dispute Officer Injury No 128 675 Yes 245 786 Category Observed Expected O – E (O – E)2 (O – E)2/E No, Domestic 128 163.31 -35.31 1246..796 7.64 No, Not Domestic 675 639.69 35.31 1246.796 1.95 Yes, Domestic 245 209.69 35.31 11506.85 5.951.52 Yes, Not Domestic 786 821.31 -35.31 1246.796 Using an alpha level of 0.05, are domestic calls more dangerous for officers than other types of calls? Compute Cramer’s V and identify if it is a small, medium, or large effect.
A professor at the University of Iowa was interested in evaluating whether domestic dispute calls were more dangerous to officers than other types of calls. Collecting information on call for service and whether the call resulted in officer injury. The data is displayed in the
|
|
|
Type of Call |
|
|
|
|
Domestic Dispute |
Not a Domestic Dispute |
|
Officer Injury |
No |
128 |
675 |
|
|
Yes |
245 |
786 |
|
Category |
Observed |
Expected |
O – E |
(O – E)2 |
(O – E)2/E |
|
No, Domestic |
128 |
163.31 |
-35.31 |
1246..796 |
7.64 |
|
No, Not Domestic |
675 |
639.69 |
35.31 |
1246.796 |
1.95 |
|
Yes, Domestic |
245 |
209.69 |
35.31 |
11506.85 |
5.951.52 |
|
Yes, Not Domestic |
786 |
821.31 |
-35.31 |
1246.796 |
|
|
Using an alpha level of 0.05, are domestic calls more dangerous for officers than other types of calls? |
|
Compute Cramer’s V and identify if it is a small, medium, or large effect. |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
