State emissions check records indicate that of all vehicles checked…State emissions check records indicate that of all vehicles checked in the previous year, 70% passed on the first try. A sample of 200 cars tested in a particular county during the current year gives 124 that passed the initial test. Does this suggest that the true rate in this county during the current year is different from the previous statewide rate? Test the relevant hypotheses with a = 0.05. MathStatistics and Probability MATEMATICA 01
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