6a) State Ho and Ha b) Find the critical value, show work c) Find the appropriate test statistic, show work d) Do a P - value test e) Make a decision to reject or fail to reject the null hypothesis and interpret the results. A dietitian wishes to see if a person's cholesterol level will lower if the diet is supplemented by a certain mineral. Six subjects were pretested, and then they took the mineral supplement for a 6 - week period. The results are shown in the table. Can it be concluded that the cholesterol has been lowered at a = .05? 15 points Subject 1 2 3 4 5 6 Before 210 235 208 190 172 244 After 190 200 210 188 173 228