You may need to use the appropriate appendix table or technology to answer this question. The following results come from two independent random samples taken of two populations. Sample 1 Sample 2 n1 60 = 35 X1 = 13.6 2 = 11.6 01 = 2.1 = 3 - (a) What is the point estimate of the difference between the two population means? (Use X1 -x2.) 2.00 (b) Provide a 90% confidence interval for the difference between the two population means. (Use X - 2. Round your answers to two decimal places.) to (c) Provide a 95% confidence interval for the difference between the two population means. (Use X - X2. Round your answers to two decimal places.) to