Essay
A local transportation planning group is concerned about the lack of car-pooling on the part of commuters.They are afraid that the proportion of local drivers car-pooling is below the national average of 15%.A survey of 400 local drivers reveals that 12.22% of them car pool.Is there evidence that the actual proportion of local commuters car-pooling is less than 15%? Test at the 10% level of significance.
Correct Answer:
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H0 : P = 0.15 against H1: P < 0.15
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Correct Answer:
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Test st...
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