Question

A researcher is interested in determining if the pattern of traffic stops by the local police indicates discriminatory treatment against minorities. She takes a random sample of 250 records of traffic stops by the police, observing the racial distribution of the drivers shown in the table below. She also determines from census data that the city’s resident population is 68% White, 22% Black, and 10% other races. Using a one-way chi-square, test the null hypothesis that the observed distribution of driver race in the sample of traffic stops matches the resident population distribution in the community.


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  • CreatedOctober 29, 2015
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