# Problem 1 A study was conducted of a simple random sample of $n = 15$ adult male patients following a new treatment for congestive heart failure. One of the variables measured on the patients was the increase in exercise capacity (in minutes) over a 4-week treatment period. Assume this variable (increase in exercise capacity) is normally distributed. The previous treatment regime had produced an average of $\mu = 2$ minutes. The researchers wanted to evaluate whether the new treatment had a *different* impact on the increase in exercise capacity than the old treatment. The data can be found in the *Heart.csv* file. a) Define the population parameter and sample statistic of interest (provide the correct symbols, and interpretations in the context of this problem)