Regression 1. In the general linear equation, Y bx +a, what is the value of b ca

Question

Regression 1. In the general linear equation, Y bx +a, what is the value of b called? a. the slope b. the Y-intercept c. the X-intercept d. the beta factor point, how much will Y increase? 2. For the linear equation Y- 2X 4, ifx increases by 1 a. 1 point b, 2 points c, 3 points d. 4 points points will not be on the line? 3. For the linear equation Y- 2X-3, which of the following a. 0,3 b. 2,1 c. 3,3 d. 4,5 30. What is the slope for 4. A set of n 15 pairs ol and Y scores has SSX-10, SSY 40, and SCP the regression equation for predicting Y from X? a, 10/30 b, 10/40 c. 40/10 d. 30/10 values is 5. A set of X and Y scores has a regression equation with a slope of b 4. If the mean for the X MX-2 and the mean for the Y values is MY-6, what is the Y-intercept value for the regression equation? 6. For which of the following correlations would the data points be most widely scattered around the regression line? a, r 0.10 b, r 0.50 c, r 0.80 d.r 0.99

Explanation / Answer

1. In y=bx+a, b is called the slope. So answer A is correct
2. In the given equation, if x increases by one point, y will increase by two points because x is multiplied by 2. Answer B is correct
3. Try putting all points in the equation given in the form of (x, y). A does not satisfy
4. Answer is C

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