10.67 Vehicles can turn right, turn left, or continue straight ahead at a certain intersection. It is hypothesized that half the vehicles entering this intersection will continue straight ahead. Of the other half, equal proportions will turn right and left. Fifty vehicles were observed to have the following behavior:

Test the stated hypothesis at the 10% level of significance.

Transcribed Image Text:

Straight Left Turn Right Turn Frequency 28 12 10