The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the

Question:

The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week (Time, March 12, 2012). Assume that a sample of 420 accidents provided the following data.

a. Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. What is the p-value? Using a .05 level of significance, what is your conclusion?
b. Compute the percentage of traffic accidents occurring on each day of the week. What day has the highest percentage of traffic accidents? Does this seem reasonable? Discuss.