In an independent random sarmple of 107 sophomores, 88 responded that they weuld use the Ibrary more if the hours were extonded. Estimate the difloronce in propertion of firstyour and second-year students sesponding affirmatively to this queston. Use a 95% confidence level. By using 95% confidence level, the difference for the proportion of first-year and second year students who responded altermatively to the question is from (Round to two decimal places as needed).