Over the past decade, an insurance company has had a mix of 40% whole life policies, 25% universal life policies, 25% annual renewable-term (ART) policies, and 10% other types of policies. A change in this mix over the long haul could require a change in the commission structure, reserves, and possibly investments. A random sample of 820 policies issued over the past few months gave the results shown below. Category Number Whole Life 311 Universal life 223 Art 206 Other 80 Total 820 Is there sufficient evidence, at the 5% level of significance, that the distribution of policy types has shifted from the historical percentages? Report your solution in the space below. Be sure to address all points for a hypothesis test.