An educator randomly assigns students to a program in which some will use new reading activities and others traditional teaching methods. At the end, both groups take a reading comprehension exam. Their scores are shown in the back-to-back stem-and-leaf display. Do these results suggest that the new activities are better? Test an appropriate hypothesis and state your conclusion. (Assume a signicance level of o = 0.05.) New Activities Control 85431 3 12223336 97531 11 246 6 | 6 refers to a score of 66