tatewide, the police clear by arrest 35% of the robberies  and 42%  of the aggravated assaults reported to them. A researcher takes a random sample of all the robberies (N=207) and aggravated assaults (N=178)  reported to a metropolitan police department in one year and finds that 83 of the robberies 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 interpreting your decision.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
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Chapter11: Data Analysis And Displays
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Statewide, the police clear by arrest 35% of the robberies  and 42%  of the aggravated assaults reported to them. A researcher takes a random sample of all the robberies (N=207) and aggravated assaults (N=178)  reported to a metropolitan police department in one year and finds that 83 of the robberies 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 interpreting your decision.

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