Questions 1–4 refer to the sample data in the following table (based on data from the Dutchess County STOP-DWI Program). The table summarizes results from randomly selected fatal car crashes in which...

Questions 1–4 refer to the sample data in the following table (based on data from the Dutchess County STOP-DWI Program). The table summarizes results from randomly selected fatal car crashes in which the driver had a blood-alcohol level greater than 0.10.

1.
What are the null and alternative hypotheses corresponding to a test of the claim that fatal DWI crashes occur equally on the different days of the week?

2.
When testing the claim in Question 1, what are the observed and expected frequencies for Sunday?

3.
If using a 0.05 significance level for a test of the claim that the proportions of DWI fatalities are the same for the different days of the week, what is the critical value?

4.
Given that the P-value for the hypothesis test is 0.2840, what do you conclude?