In: Statistics and Probability
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 110 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 | 8 | 8 | 6 | 6 | 9 | 14 | 6 | 14 | 6 | 8 | 10 | 15 |
Question 4: Find the expected value for the number of fatal accidents that occurred in January. Round your answer to two decimal places.
Question 5: Enter the value of the test statistic. Round your answers to 2 decimals.
Question 6: Enter the degrees of freedom associated with the test statistic for this problem.
Question 7: Enter the critical value of the test statistic. Round your answer to 3 decimals.
Question 8: Enter the p-value. Round your answer to 3 decimals.
Question 9: At the 0.025 level of significance, determine whether to fail to reject or reject the null hypothesis.
A) Reject Null Hypothesis | B) Fail to Reject Null Hypothesis |
C) Accept the Alternative Hypothesis | D) There is not enough information to make this decision. |
Question 10: Choose the correct response at the 0.025 level of significance.
A) There is not significant evidence to reject the executive's claim. | B) There is significant evidence to reject the executive's claim. | C)There is not enough information to make this decision. |