Problem 2 (3 Points) You are presented with the following information from a single sample study: H1: Hprotest * posttest, EX. = 2210 , EX = 1981, ED = 229, ED2 = 2772.9, n = 19 a) What is the t value (obtained value)? b) What is the critical value (p > 0.05)? c) Is the difference statistically significant? Why? Similar to Problem 1, please show all your work. No credit is given if work is not shown. You MUST use the t value formula from our textbook and Chapter 12 Slides (see slide 5). Any other formula used, regardless of the answer, will result in score of zero for this problem. Computing the Test Statistic ED t = nED' - (ED) n -1 where . D the difference between each individual's score from point 1 to point 2, . ED is the sum of all the differences between groups of scores, . [ D' is the sum of the differences squared between groups of scores, and . n is the number of pairs of observations. Please use the above formula