- 25 - Section 6.4 Inference for a Difference in Means Question 1 of 18 - /1 View Policies Current Attempt in Progress Use the formula to find the standard error of the distribution of differences in sample means, X1 - X2. Samples of size 110 from Population 1 with mean 87 and standard deviation 14 and samples of size 80 from Population 2 with mean 75 and standard deviation 17 Round your answer for the standard error to two decimal places. standard error = e Textbook and Media Assistance Used e Textbook Save for Later Attempts: 0 of 4 used Submit