Sample 1 Sample 2 ", = 20 n2 = 30 X1 = 22.7 x2 = 20.1 52 = 2.1 5₂ = 4.6 (a) What is the point estimate of the difference

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Sample 1 Sample 2 20 N2 30 X1 22 7 X2 20 1 52 2 1 5 4 6 A What Is The Point Estimate Of The Difference 1 (28.06 KiB) Viewed 120 times

Sample 1 Sample 2 ", = 20 n2 = 30 X1 = 22.7 x2 = 20.1 52 = 2.1 5₂ = 4.6 (a) What is the point estimate of the difference between the two population means? (Use X, - *y) (b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.) (c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)