A medical researcher wishes to describe the relationship between the prescription cost of a brand name drug and its generic equivalent. A)What is the value of X2? B) What is the value of Y2? C) What is the value of XY? D.)Is the linear relationship between brand name drug cost and generic drug cost negative? E.) What is the strength of correlation between brand name drug cost and generic drug cost? F) If the the tabulated value of r is equal to 0.707 at=0.05, what is the decision? G) What is the conclusion to the problem? PLEASE ANSWER ALL THE LETTERS