What is the p value and the conclusion statement

A study was conducted to investigate how effective a new diet was in lowering cholesterol. Results for the randomly selected subjects are shown in the table. The differences have a normal distribution. Are the subjects' cholesterol levels lower on average after the diet? Test at the 5% level. Subject A B C D E F G H Before 209 210 205 198 216 217 238 240 222 After 199 207 189 209 217 202 211 223 201 What is the Null and Alternate hypotheses? OHo : Ma 2 0 H1 : Ma 0 (after - before) OHo : Ma = 0 H1 : Ma # 0 (after - before)