They are subjects in different research studies assessing the the relationship between stress levels and exposure to math equations. Mario scored 84 points on a measure assessing stress. (Assume that the overall distribution of scores is normal with = 81 and = 11.7.) Ian scored 58 points on a different measure assessing stress. (Assume that the overall distribution of scores is normal with =52 and = 6.3.) Note that for both stress measures, higher scores indicate greater stress. Based on this information, did Mario or Ian have a higher level of stress in terms of z scores? Why