It has been found that 85.6% of all enrolled college students in the united states are undergraduates. a random sample of 500 enrolled college students in colorado revealed that 420 of them were undergraduates. is there enough evidence to support the claim that the proportion is less than the national percentage? use α = 0.05. (use the traditional method to test the hypothesis). make sure to write down the hypotheses, claim, critical value, test statistic, decision and conclusion (interpretation in terms of question).