Question: Each person in a random sample of 1100 “likely voters” was questioned about his or her political views. Of those surveyed, 708 felt that the “economy’s state’ was most urgent national concern. What is sample proportion, and standard error of sample proportion? Calculate 99% confidence interval. If we want to estimate p, the proportion of likely voters that believe the economy’s state is the most urgent national concern with 99% confidence and margin of error no greater than 2%, how many likely voters need to be surveyed? Assume that you have no idea about the value of p.