You initially design a study to examine the differences in the average respiratory rates upon discharge for a random selection of patients under age 40 , ages 41-60, and over age 60 . You anticipate completing an ANOVA. However, during your study time frame, there is only one persan onrolled who is age forty and all the other participants are over age forty You decide to compress the age: groups into 40 69 and over age 60 . What would be the bost analysis technique to use with your new design? A. repeated measures ANOVA B. independent t-test C. Chi-square D. McNemar's test .