SOLVED

31) The plots on the scatter diagram will be spread uniformly and in accordance with the normal curve assumptions over the regression line. This is: A) based on residuals analysis. B) according to the Central Limit Theorem. C) one of the assumptions of regression analysis. D) due to confidence interval analysis. E) a hypothesis. 32) Which of the following residuals shows an exact prediction? A) 0 B) +1.0 C) -25 D) +25 E) 100.0 33) Bivariate regression analysis is defined as a predictive analysis technique in which: A) a pattern is identified over time and projected into the future. B) a relationship that exists across time is observed to make a prediction. C) one variable is used to predict the level of another by use of the straight-line formula. D) one variable is used to predict the level of another by use of a scatter diagram. E) a relationship that exists at one point in time is observed to make a prediction. 34) In the formula for a straight line, the intercept is known as: A) the dependent variable. B) the variable used to predict the dependent variable. C) the change in y for any unit change in x. D) the point where the line cuts the y axis when x = 0. E) “b”. 35) In the formula for a straight line, the slope is defined as: A) the change in y for any 1-unit change in x. B) where the line cuts the y axis when x = 0. C) the variable used to predict the dependent variable. D) the dependent variable. E) the predicted variable. 36) In bivariate regression analysis, the dependent variable is one that is: A) used to predict the independent variable, and it is the x in the regression formula. B) used to predict the independent variable, and it is the y in the regression formula. C) predicted, and it is usually termed x in the regression formula. D) predicted, and it is usually termed y in the regression formula. E) predicted, and it is termed b in the regression formula. 37) In bivariate regression analysis, the independent variable is one that is: A) used to predict the dependent variable, and it is the x in the regression formula. B) used to predict the dependent variable, and it is the y in the regression formula. C) predicted, and it is the x in the regression formula. D) predicted, and it is the y in the regression formula. E) used to predict the dependent variable, and it is the b in the regression formula. 38) What criterion is used to establish the best “fit” of a straight line through the points on a scatter diagram? A) the plum line criterion B) the least squares criterion C) the bearing line criterion D) the b slope criterion E) the right angle criterion 39) _____________ analysis determines the best slope and the best intercept possible for the straight-line relationship between the independent and dependent variables for the data set that is being used in the analysis. A) Chi-square B) Residual C) t test D) Covariate E) Regression 40) Tests for significance of the computed intercept and computed slope are required in order to be able to predict the value of the dependent variable based on some value of the independent variable. The test used for this is the: A) Chi-square. B) Analysis of residuals. C) t test. D) f test. E) z test.