If we compare the common variance by performing several test and the test is abnormal would we reject the hypothesis.
This part of your post makes no sense: "...by performing several test and the test is abnormal..."
The word "several" indicates a plural, and yet your references after that are singular ("test" twice). It makes a difference.
Also -- you need to indicate the SUBJECT not the abbreviation for your course. Is this math? statistics? psychology? what??