Question: Below is the formula for regression analysis REGRESSION ANALYSIS By using the least squares method (a procedure that minimizes the vertical deviations of plotted points

Below is the formula for regression analysis

plotted points surrounding a straight line) we are Y = bX +

REGRESSION ANALYSIS By using the least squares method (a procedure that minimizes the vertical deviations of plotted points surrounding a straight line) we are Y = bX + a able to construct a best fitting straight Change line to the scatter diagram points and then formulate a regression equation b = Slope in Y in the form of: Change in X a = Y-intercept =atby X E xy - 2 x Zy by= n y =y+b(x -x) nCORRELATION & REGRESSION ANALYSIS REGRESSION ANALYSIS EXERCISE 3: A sample of 6 persons was selected the value of their age ( x variable) and their weight is demonstrated in the following table. Find the regression equation and what is the predicted weight when age is 8.5 years. 41 X = = 6.83 66 V= 6 6 41 x 66 461 - b = 6 = 0.92 291 - (41) 6 y () = 4.675 + 0.92x CORRELATION & REGRESSION ANALYSIS REGRESSION ANALYSIS EXERCISE 3: A sample of 6 persons was selected the value of their age ( x variable) and their weight is demonstrated in the following table. Find the regression equation and what is the predicted weight when age is 8.5 years. Prediction when x= 3 5 jours y (85) = 4.675 + 0.92 *8.5 =12.50Kg

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