The following results come from two independent random samples taken of two populations. Sample 2 Sample 1 n1 = 50 n = 30 1 = 13.5 01 = 2.3 x2 = 11.7 2 = = 3.5 a. What is the point estimate of the difference between the two population means? (to 1 decimal) 1.8 b. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). ) c. Provide a 95% confidence interval for the difference between the two population means (to 2 decimals). ) Icon Key Hint(s) Chec Hint(s) Chec