The theory, methods, and practice of testing a hypothesis by comparing it with the null hypothesis. The null hypothesis is only rejected if its probability falls below a predetermined significance level, in which case the hypothesis being tested is said to have that level of significance.
If you find yourself in the scenario presented above, do not interfere. Just stay with the victim to make sure that he recovers. The coughing and the wheezing action of the victim will help him to clear his airways of the partial obstruction so that he can recover normal breathing.
Child could be a late bloomer or have hearing problems, developmental problems or neurological problems
Because it negatively effects there participation
