Question: The research department at the home office of New Hampshire Insurance conducts on-going research on the causes of automobile accidents, the characteristics of drivers, and so on. A random sample of 400 policies written on single persons revealed 120 had at least one accident in the previous three-year period. Similarly, a sample of 600 policies written on married persons revealed that 150 had been in at least one accident in the previous three-year period. At the 0.05 significance level, can the insurance company conclude that single persons are more prone to having accidents than married persons?