Question

The number of accidents in a highway as recorded every month over a 9-month period are 15, 18, 9, 11, 14, 10, 8, 13, 19. Test at 5% frequencies are in agreement with the belief that the number of accidents was the same during the 9 months. It is given that the table values of 2 χ at 5% level for 8 d.o.f. and 9 d.o.f. are 15⋅5 and 16 ⋅9 respectively.

Answer 1

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