Question

A highway department executive claims that the number of fatal accidents which occur in her state does not vary from month to month. The results of a study of 159 fatal accidents were recorded. Is there enough evidence to reject the highway department executive's claim about the distribution of fatal accidents between each month?

A highway department executive claims that the number of fatal accidents which occur in her state does not vary from month to month. The results of a study of 112 fatal accidents were recorded. Is there enough evidence to reject the highway department executive's claim about the distribution of fatal accidents between each month? Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Fatal Accidents 7 6 9 13 12 12 9 6 7 10 8 13 Copy Data Step 6 of 10 :   Find the value of the test statistic. Round your answer to three decimal places.

Copy Data

Step 4 of 10 :  

Find the expected value for the number of fatal accidents that occurred in January. Round your answer to two decimal places.

Answer 1

Given Data :

Fatal accidents recorded = 159

Expected number of accidents = 159/12 (12 months)

Expected number of accidents occured in january = 13.25

Fatal accidents recorded = 112

Expected number of accidents = 112/12 (12 months)

Expected number of accidents occured in january = 9.33

Test Statistics for fatal accidents is 159 = 19.650

Test Statistics for fatal accidents is 112 = 8.218

Note : in this question i found 2 data soi solve answers for both data