Long-Term Effects of OxyContin. Opiates have severe effects on the brain, and OxyContin is no different. Long-term effects include persistent vomiting and diarrhea caused by its action on the stomach.The stomach is unable to regulate itself properly, leading to these issues.piates have severe effects on the brain, and OxyContin is no different. Long-term effects include persistent vomiting and diarrhea caused by its action on the stomach.
The null hypothesis states that any effects observed after treatment (or associated with a predictor variable) are due to chance alone. Statistically, the question that is being answered is If these samples came from the same population with regard to the outcome, how likely is the obtained result?
Most technical papers rely on just the first formulation, even though you may see some of the others in a statistics textbook. 1  Null hypothesis: âx is equal to y.â Alternative hypothesis âx is not equal to y.â. 2  Null hypothesis: âx is at least y.â Alternative hypothesis âx is less than y.â.