The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data.

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
66	49	53	47	55	69	81

(a) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance.

State the null and alternative hypotheses.

O Ho: Psun * PMon # PTue * Pwed # PThu # PFri * Psat H_: All proportions are equal. O Ho: Psun = PMon = Pque = Pwed = PThu = PFri = Psat H_: Not all proportions are equal. O Ho: Not all proportions are equal. He: Psun = PMon = PTue = Pwed = PThu = PFri = PSat 7 O H : Not all proportions are equal. Hai Psun # PMon # Pque * Pwed # PThy # PFri * PSat