Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: Hp - 0 (the null hypothesis states that the mean difference for...

Extracted text: Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: Hp - 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are normally distributed. A B Observation 2 3 4 7 4 4 4 5 8 For a repeated-measures t test, you need to calculate the t statistic, which requires you to calculate s and SMD- What is the estimated standard error of the mean difference scores? (Note: For best results, retain at least six decimal places from your calculation of s.) (round your answer to this question to four decimals)