Suppose you are given the following data: sample size sample mean sample var 10.26 6.3001 X > 9.02 3.61 Using pooled variance, construct a 95% confidence interval for the difference in means. a) What is the t-quantile you will use? b) What is the pooled variance? Round your answer to 3 decimal places. c) What is the left endpoint? Round your answer to 3 decimal places. d) What is the right endpoint? Round your answer to 3 decimal places