To compare the effects of meditation and exercise, the levels of a biochemical substance were measured the level of a biochemical substance in 11 people one hour after an intense meditation session and in 15 other people one hour after a sustained physical exercise. exercise. The descriptive statistics of the observed data are summarized in the table below Measure Meditation Physical exercise Sample mean 88.33 90.65 Sample standard deviation 10.1 12.3 1. Construct the 95% confidence interval of the difference between the mean rates of the two the mean rates of the two populations. Assume that the variables are normal with the same standard deviation. 2. What do we conclude?