Cholesterol Levels A medical researcher wishes to see if he can lower the cholesterol levels through diet in 6 people by showing a film about the effects of high cholesterol levels. The data are shown. At a = 0.05, did the cholesterol level decrease on average? Use the critical value method and tables. Patient 1 2 3 4. 5 6 Before 250 219 218 224 209 223 After 216 203 192 190 207 213 Send data to Excel Part: 0/5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho: (Choose one) 0