Statewide, the police clear by arrest 35% of the robberies and 42% of the aggravated assaults reported to them. A researcher takes a random sam- ple of all the robberies (N 5 207) and aggravated assaults (N 5 178) reported to a metropolitan police department in one year and finds that 83 of the rob- beries and 80 of the assaults were cleared by arrest. Are the local arrest rates significantly different from the statewide rates? Write a sentence or two inter- preting your decision.