PLEASE HELP:
A physician claims that a person's diastolic blood pressure can be lowered if, instead of taking a drug, the person meditates each evening. Ten subjects are randomly selected and pretested. Their blood pressures, measured in millimeters of mercury, are listed below. The 10 patients are instructed in basic meditation and told to practice it each evening for one month. At the end of the month, their blood pressures are taken again. The data are listed below. Test the physician's claim. Use (small alpha symbol) = 0.01.

Patient 1 2 3 4 5 6 7 8 9 10
Before 85 96 92 83 80 91 79 98 93 96
After 82 90 92 75 74 80 82 88 89 80

Could you include steps you used to solve as well as the equations used to find the result? I appreciate your help so much! I included the original question just incase