Stats help

You may need to use the appropriate appendix table or technology to answer this questi The following results are for independent random samples taken from two populations. Sample 1 Sample 2 n1 = 20 n, = 30 x 1 = 22.8 x 2 = 20.1 S1 = 2.8 $7 = 4.8 (a) What is the point estimate of the difference between the two population means? (Us 2.7 (b) What is the degrees of freedom for the t distribution? (Round your answer down to t 48 X (c) At 95% confidence, what is the margin of error? (Round your answer to one decimal 2.4 X (d) What is the 95% confidence interval for the difference between the two population m 13 X to 5.1 X