Question

In: Statistics and Probability

For any mathematical computations, you must show your work to receive full credit. 2. For a...

For any mathematical computations, you must show your work to receive full credit.

2. For a sample of 900 police officers at a local police department, a researcher believes there is a relationship between “number of arrests per month” and “police use of force.” Using the following data, test the null hypothesis at the .01 level of significance that police use of force does not differ by the number of arrests per month that an officer makes. In so doing, identify: (1) the research and null hypothesis, (2) the critical value needed to reject the null, (3) the decision that you made upon analyzing the data, and (4) the conclusion you have drawn based on the decision you have made.

                                                                 Number Of Arrests Per Month

            Use of Force                            One                  Two                 Three               Four or More                Total

            No Force                                  120                  100                 40                       120                         380

            Force                                       120                  140                 100                       160                         520_

                                                            240                  240                 140                       280                        900

3. How is an Analysis of Variance (ANOVA) similar to and different from a t-test for two samples?

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Expert Solution

orchestra answered 2 years ago
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