A pilot study is run to investigate the effect of a lifestyleintervention designed to increase medication adherence in patientswith HIV. Medication adherence is measured as the percentage ofprescribed pills that are taken over a one-week observation period.Ten patients with HIV agree to participate and their medicationadherence before and after the intervention are shown below.Compute the standard deviation of the difference in adherencebefore versus after intervention. Please show your work andexplain.Thank you!
Participant ID | Before Intervention | After Intervention |
1 | 75% | 80% |
2 | 82% | 84% |
3 | 66% | 70% |
4 | 74% | 70% |
5 | 88% | 90% |
6 | 66% | 75% |
7 | 51% | 60% |
8 | 93% | 90% |
9 | 88% | 90% |
10 | 91% | 95% |
