If the correlation coefficient is a positive value, then the slope of the regression line ___________

Related MCQs

• Regression analysis was applied to return rates of sparrowhawk colonies. Regression analysis was used to study the relationship between return rate (x: % of birds that return to the colony in a given year) and immigration rate (y: % of new adults that join the colony per year). The following regression equation was obtained) ! = 31.9 – 0.34x Based on the above estimated regression equation, if the return rate were to decrease by 10% the rate of immigration to the colony would________________
• Suppose the correlation coefficient between height (as measured in feet) versus weight (as measured in pounds) is 0.40. What is the correlation coefficient of height measured in inches versus weight measured in ounces? [12 inches = one foot; 16 ounces = one pound] _______
• If the coefficient of determination is a positive value, then the regression equation__________
• If there is a very strong correlation between two variables then the correlation coefficient must be _______
• When the correlation coefficient between x and y is positive, then as variable x decreases, variable y Remains the same________
• If the coefficient of determination is equal to 1, then the correlation coefficient _______
• Suppose that you have carried out a regression analysis where the total variance in the response is 133452 and the correlation coefficient was 0.85. The residual sums of squares is____________
• If the coefficient of determination is 0.81, the correlation coefficient __________
• In a regression and correlation analysis if r 2 = 1, then ___________
• Regression analysis was applied between $ sales (y) and $ advertising (x) across all the branches of a major international corporation. The following regression function was obtained) ! = 5000 + 7.25x If the advertising budgets of two branches of the corporation differ by $30,000, then what will be the predicted difference in their sales? __________