Randomly selected deaths of motorcycle riders in a region of the northern hemisphere are summarized in the accompanying table. Use a 0.05 significance level to test the claim that such fatalities occur with equal frequency in the different months. How might the results beexplained?

Month

Jan.

Feb.

March

April

May

June

Number

8

9

13

14

20

26

Month

July

Aug.

Sept.

Oct.

Nov.

Dec.

Number

23

25

27

12

12

10

Determine the null and alternative hypotheses.

H0:

*PICK ONE *

Fatalities occur with the same frequency in the different months of the year.

At least two months have a different frequency of fatalities than the other months.

At least one month has a different frequency of fatalities than the other months.

Fatalities occur with all different frequencies on the different months of the year.

H1:

*PICK ONE*

Fatalities occur with the same frequency in the different months of the year.

At least two months have a different frequency of fatalities than the other months.

Fatalities occur with all different frequencies on the different months of the year.

At least one month has a different frequency of fatalities than the other months.