Using 90% confidence level, develop a confidence interval for the proportion of the customers who find the support representatives to b courteous and professional. (6 points) Enter your answers in percent (%) and round them to the nearest integer. Do not include the percent (%) sign in your answer. The lower confidence interval limit (LL) = The upper confidence interval limit (UL) = What is the estimated percentage of customers who find the support representative to be reasonably responsive to their problem? (3 poin Enter your answer in percent (%) and round it to the nearest integer. Do not include the percent (%) sign in your answer. Your answer is: Develop a 90% confidence interval for proportion of customers who find the sunno