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Below in green is the data given for this exercise. The questions are in red, and my answers are in blue. Could you please review

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Below in green is the data given for this exercise. The questions are in red, and my answers are in blue. Could you please review and tell me if I am right or wrong? Prediction: X (X Prime) from Y x = 200, y = 350, Sx= 75, Sy - 100, fay = 0.46 Box A: mean plus 2 standard deviations, B: mean of the variable on vertical axis, C: mean minus one standard deviation. D: mean minus 2 standard deviations, E: mean, F: mean plus 2 standard deviations. Question 1: What values do you put in the letter boxes: A: 350, B: 200, C: 50, D: 150, E: 350, F: 550 Question 2: Find the regression line equation. X= a + by First confusion: Is b the same as r7 Or do I use the formula b = r(as/sy) or do I use b = (sy/sx)? I tried b = r(ex/x) =0.46(75/100) =0.345 a= x - b(9) =200 - 0.345(350) =79.25 so the line would be X = 79.25 + 0.345(Y) Please revise this second question because I have the feeling it is all wrong. Question 4: Looking at your first predicted point (left most point) what is the given value and the predicted value? I guess the given value is 150 and the predicted value is what results from X-79.25+0.345(150)

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