Question 41. You have carried out a regression analysis; but, after thinking about the relationship between
variables, you have decided you must swap the explanatory and the response variables. After
refitting the regression model to the data you expect that:

Question 42. Suppose you use regression to predict the height of a woman’s current boyfriend by using her own
height as the explanatory variable. Height was measured in feet from a sample of 100 women
undergraduates, and their boyfriends, at Dalhousie University. Now, suppose that the height of
both the women and the men are converted to centimeters. The impact of this conversion on the
slope is:

Question 43. A residual plot:

Question 44. When the error terms have a constant variance, a plot of the residuals versus the independent
variable x has a pattern that

Question 45. The relationship between number of beers consumed (x) and blood alcohol content (y) was studied in 16 male college students by using least squares regression. The following regression equation was obtained from this study: != -0.0127 + 0.0180x The above equation implies that_________

Question 46. Statistics branches include__________

Question 47. When the two regression line coincide, then r is_________

Question 48. When a multiple correlation coefficient R 1.23 =1 , then R 2.13 is________

Question 49. What will be the range of r when we find that the dependent variable increases as the independent variable increases?__________

Question 50. Which of the following is the highest range of r?__________