A policy analyst wants to test whether college graduates are more interested in purchasing an electric vehicle than people without a college degree. In the prtest output below, ev is a dummy variable taking the value 1 if the consumer is interested in purchasing an electric vehicle and 0 otherwise, while college is a dummy variable taking the value 1 if the consumer has graduated from college and 0 otherwise. Calculate the missing confidence interval. That is, calculate the missing values A and B. Interpret the confidence interval.