tab You may need to use the appropriate appendix table or technology to answer this question. The following results are for independent random samples taken from two populations. A (a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.) 2.8 ✓ esc F 57°F Clear →1 (b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.) 45 ✓ Sample 1 n₁ = 20 X₁ = 22.9 x₂ = 20.1 s, = 2.5 (c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.) 2.093602103 ✓ (d) What is the 95% confidence interval for the difference between the two population means? (Use x. - x₂. Round your answers to one decimal place.) -33.6 X to 39.2 x Need Help? 1 1 Sample 2 n₂ = 30 ? Q $₂4.8 @ 2 * Read I W w* | # Watch t 3 E B $ Master it 4 ts R do 55 % 16 ¹4- T O ^ 6 4+ Y & 7 144 * U 8 hp DE 1 DDI 9 O O P { prt sc C G t ] home 7 home 694 8 ↑ 8:35 PM 4 10/9/2022 * og on 9