Chapter 13 correlation/ chapter 14 regression

E( x-x)(y-7) VE( x- x ) E(y-5) Two movie critics use a 100-point scale to evaluate eight recent movie releases. Based on their data (shown below), computer to determine the relationship (correlation) between their ratings Movie Movie Critic Movie Critic abbreviated Smith's ratings Adams' ratings title (variable X) (variable Y) A 30 72 B 34 TO 35 76 D 36 80 E 39 73 F 39 79 G 40 76 H 40 83 42 85 46 81 Chapter 14 (Regression) Problem Linear Regression Analysis You will now use the data from the Correlation problem you solved above. You need to double check your math to make sure your calculations are correct (if they are incorrect, it will lead to an incorrect answer on this problem) y - a + bx Intercept Slope b-r S. a = y - bx Problem: If x 48 (in the formula shove, this would be the cursive x), based on performing a regression analysis, what will we predict y to bet In other words. If Critic Smith rates a particular movie at 48, what do we predict Critic Adam's rating to be