1. In simple linear regression model with x representing the independent variabl
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Question
1. In simple linear regression model with x representing the independent variable and y representing the dependent variable, linear regression analysis is used to o A. find sample size. o B. find the y intercept and slope of the line of association between X and Y. C. measure the strength of the linear relationship between x and y, as well as the direction of association. D. draw a scatter plot o 2. If through some analysis, one can conclude that the slope of the line of best fit is not equal to zero, then the simple linear regression model indicates that there is .A. a positive relationship between the independent and dependent variables. - B. a negative relationship between the independent and dependent variables. .C. a positive or negative relationship between the independent and dependent variables. . D. no relationship between the independent and dependent variables. 3. Which of the following is associated with correlation and regression analysis? A. Least-squares B. Correlation coefficient - C. Coefficient of determination D. All of the above 4. For simple linear regression model, if the unit for the dependent variable is square feet, then the unit for the independent variable .A. must be square feet. B. can be some unit of square measurement. C. can be any unit. D. cannot be a unit of square measure . 5. The slope of the line is called: A. a and is the point where the regression line cuts the vertical axis. B. b and gives us a measure of how much y changes as x changes. C. a correlation coefficient and indicates the variability of the points around the regression line in the scatter plot. - · D. none of the above.Explanation / Answer
1. Option B is correct.
2 Option C is correct.
3. Option D is correct.
4. Option C is correct.
5. Option B is correct.
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