What implications does the relationship between shooting victims' ages and these victims' relationships with their shooters have for efforts to prevent firearm violence? For each of the four categories of victim-offender relationship, consider the mean age of victims and devise a strategy that could be used to reach people of this age group and help them lower their risks of firearm victimization. These questions are related to Hypothesis testing with three or more population means: analysis of variance
Ans. Analysis of variance (ANOVA) is a powerful statistical tool for test of significance. The test of significance based on t distribution, an adequate procedure for testing significance of the difference between two sample means. In a situation when we have three or more samples at time, an alternative procedure is used for testing the hypothesis that homogeneity of several independent sample means. Such type of analysis is based on F test. This procedure is known as ANOVA.
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