3. A physical fitness instructor was interested in comparing three cardiovascular Page 55 fitness programs. After three groups participated in the programs, she measured the oxygen uptake (ml/kg/min) of all the subjects. Use the appropriate ANOVA technique to determine if the group means are significantly different. If you find that there are significant differences in the group means, use the HSD to identify which means are significantly different. Group I Group II Group III 47 49 46 50 51 46 50 48 50 49 47 48 52 50 49 48 47 53 49 47 51 51 50 52