Suppose that a fast food restaurant decides to survey its customers to gauge interest in a breakfast menu. after surveying multiple people, the restaurant created a 95% confidence interval for the proportion of customers interested in a breakfast menu. the confidence interval is (0.688,0.766)(0.688,0.766) . use the confidence interval to find the point estimate and margin of error for the proportion. give your answer precise to three decimal places. point estimate = margin of error =