A test was done to compare serum cholesterol levels in obese and non-obese women. The test for significance of difference is :: (A) Paired T test, (B) Student T test for independent variables, (C) Chi square, (D) Fischer test
Answer is B. Ans. is 'b' i.e. Student t test for independent variables The variable measured is serum cholesterol which is normally distributed in the population .The two groups are independent of each other