The scores on a standardized test for 322 students in nontraditional math classes were compared to the scores of 264 students in traditional math classes. Computer software was used to create a confidence interval for the difference in mean scores. Complete parts a through d. Conf level: 95% Variable: (Non Trad) - p(Trad) Interval: (6.228, 12.172) a) What is the margin of error (ME) for this confidence interval? ME =(Type an integer or decimal rounded to three decimal places as needed.)