1. A linear regression 2. In a regression model, the slope represents the 12. A
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Question
1. A linear regression
2. In a regression model, the slope represents the
12. A perfect positive correlation means
13. The value of the correlation coefficient is zero if the points in a scatter diagram
15. We construct a scatter diagram by
16. The value of y obtained for an element from a survey is the
17. The least squares method minimizes the
19. A simple regression model contains
A. gives a relationship between two variables that can be described by a line. B. gives a relationship between two variables that cannot be described by a line. C. gives a relationship between three variables that can be described by a line. D. contains only two variables.Explanation / Answer
20. Random error term. B) [error term refer to amount at which regression equation may differ during empircal analysis]
19. One independnet and on edependnet variable C) [Dependent Variable=Intercept+Slope*Independnet variable.
18. The table is not displayed.
17. The sum of squared errors. C) [The least sqaure criterion is that the line that best fits a set of data points is th eon ehaving the smallest possible sum of squared errors.
16. Actual value of y C)
15. Plotting th epaired values of x (predictor variable in x axis) any y (response vraible in y axis). C)
14. Image is not displayed.
13. The value of r is 0, if points are scattered all over the scatter diagram C)
12. A)
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