Chisquare Analysis 1. Cases of Violent crimes are randomly selected and categorized by month, with the results shown in the table below. Use a 01]] signicance level to mt the claim that the rate of violent crime is the same for each month. _-----------EE mum ' Ha: vs. Ha: ' Test statistic to use: Tail of the distribution: . Reject Ho if ' Computation: ' Decision: ' Conclusion: 2. A case-control study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Test the claim that injuries are independent of helmet color. Should motorcycle drivers choose helmets with a particular color? Color of Helmet Black White Yellow/Orange Red Blue Not injured 491 377 31 170 55 Injured or killed 213 112 8 70 26 Ho: VS. Ha: Test statistic to use: Tail of the distribution: . Reject Ho if . Computation: . Decision: Conclusion