Wm Interval for Proportions On average, just 53 percent of students who started college in the fall of 2012 had earned any degree six years later, according to the National Student Clearinghouse Research Center. You are interested in studying if the percentage is the same in one of the local colleges here in Houston Metro area. You conducted a random survey of 144 people who started college in 2012 and found that 89 had earned a degree. 1. Construct a 95% condence interval and interpret your results. 2. Based on your results, would you say that this Houston college has performed better than the national rate