A study was conducted of 90 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. The previous treatment regime had produced an average increase of 2 minutes. The researchers wanted to evaluate whether the new treatment had increased the average exercise time comparison to the previous treatment. The data yielded a sample average of 2.17 and standard deviation 1.05.

1. Carryout a appropriate hypothesis test achieve their goal (Use p value approach). You may use 5% significance level to draw a conclusion.

2. Use MINITAB to carryout the hypothesis test (Attach the output). Compare the exact p value you obtained from MINITAB with the bracketed p value you obtained in part a using the table.