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Question

Vehicles heading west on Front Street may turn right, turn left, or go straight ahead at Elm Street. The city traffic engineer believes that half of the vehicles will continue straight through the intersection. Of the remaining half, equal proportions will turn right and left. Two hundred vehicles were observed, with the following results. Can we conclude that the traffic engineer is correct? Use the 0.10 significance level.

 

	Straight		Right Turn		Left Turn
Frequency	112		48		40

Make the decision rule. (Round your answer to 3 decimal places.)

1. H0 Is rejectef if chi-square > ____

Answer 1