Smoking i think well because we voluntary to smoke even thorough we know the threat of that
Null hypothesis is the hypothesis that the effect relationship, or the other manifestations of variables and data under investigation does not exist.
I null hypothesis , a study is started in which an assumption is made that there is no difference between the experimental and control groups.
This assumption of no difference between between the experimental and control groups is known as null hypothesis.
If the results of the study indicate a P value, it indicates that there is a difference between the groups and it is determined with the help of the P value that this difference is due to chance.
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I hope you feel better it's not fun to be depressed trust me but I know u will get through this even tho I don't know u I know that u will get through this
