A study was conducted to investigate the impact of meditation training on opioid use 2-weeks after surgical appendectomy.

20 patients were randomized to receive meditation training before hospital discharge and 20 patients received a pamphlet on the long-term risks of opioid use.

Investigators compared opioid use (yeso) in both groups 2 weeks after discharge.

What is the appropriate null hypothesis?

Q There is no association between opioid use 2 weeks post-discharge and treatment group in the populations. O The mean opioid use 2 weeks post-discharge is the same in the treatment and control groups. C) The median opioid use 2 weeks post-discharge is the same in the treatment and control groups in the populations. 0 The slope for opioid use 2 weeks post-discharge is the same between the treatment and control groups in the populations