When r is not significantly different from 0, the best predictor of y is the of

Question

When r is not significantly different from 0, the best predictor of y is the of the data values of y. A regression line can be used to show trends in data. A) True B) False A regression line was calculated as y' = 9.7-3.2x. The slope of this line is 3.2. A) True B) False The equation of a regression line is y' = 4.6 + 3.2x. What is the intercept of this line? A) -4.6 B) 3.2 C) 4.6 D) 0 If the equation for the regression line is y' = 7x 9, then a value of x = 2 will result in a predicted value for y of Ans What is the value of y' when x = 3, if the equation of the regression line is y' 23.1-3.8x? A) 4.73 B) 5.29 C) 34.5 D) 11.7

Explanation / Answer

63)

If r is nor significantly differ from zero then the best predictor of y is expected value (mean) of y.

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