The Center for the Study of Violence wants to determine whether a conflict-resolution program in a particular high school alters aggressive behavior among its students. For 10 students, aggression was measured both before and after they participated in the conflict-resolution course. The scores were the following (higher scores indicate greater aggressiveness): Before Participating After Participating 10 8 3 3 4 1 8 5 8 7 9 8 5 1 7 5 1 1 7 6 State the null and alternative hypotheses. Calculate the appropriate test statistic and degrees of freedom. Compare the obtained test statistics with the critical value at the .05 alpha level. Do you accept or reject the null hypothesis?
The Center for the Study of Violence wants to determine whether a conflict-resolution program in a particular high school alters aggressive behavior among its students. For 10 students, aggression was measured both before and after they participated in the conflict-resolution course. The scores were the following (higher scores indicate greater aggressiveness):
Before Participating After Participating
10 8
3 3
4 1
8 5
8 7
9 8
5 1
7 5
1 1
7 6
State the null and alternative hypotheses.
Calculate the appropriate test statistic and degrees of freedom.
Compare the obtained test statistics with the critical value at the .05 alpha level.
Do you accept or reject the null hypothesis?
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