need help with this stast qesution thanks so much!

Consider the following results for two independent random samples taken from two populations. Sample 1 Sample 2 n 1 = 50 n 2 = 30 x 1 = 13.3 x 2 = 11.4 0 1 = 2.5 0 2 = 3.4 a. What is the point estimate of the difference between the two population means? (to 1 decimal) 1.7 X b. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). Use z-table. c. Provide a 95% confidence interval for the difference between the two population means (to 2 decimals). Use z-table. If your answer is negative, enter minus (-) sign