BUSI 520 Course Study Guide with Practice Questions and Answers 2026

BUSI 520 Course Study
Guide with Practice
Questions and Answers
2026

, When the correlation coefficient is negative, and one variable increases the other variable - correct answer
k k k k k k k k k k k k k k k k




Blank 1: decreases k k




With a positive covariance, the variables move in - correct answer unison
k k k k k k k k k k k




Fill in the blank question.
k k k k




Correlation coefficients reveal the _____ and________of relationships. - correct answer Blank 1: magnitude
k k k k k k k k k k k k




Blank 2: direction k k




Fill in the Blank Question
k k k k




Fill in the blank question.
k k k k




r2 represents the of the total relationship accounted for by one variable or the other. - correct answer
k k k k k k k k k k k k k k k k k k




When the correlation coefficient is positive, and one variable increases the other variable - correct answer
k k k k k k k k k k k k k k k k




increases



In the basic regression model, which of the following is for the intercept? - correct answer Y-β1X
k k k k k k k k k k k k k k k k




By controlling variables under an experimental design, we may obtain more rigorous evidence of - correct
k k k k k k k k k k k k k k k k




answer causation k




In a plot of standardized residuals, the residuals should all fall between - correct answer Blank 1: 2, two, or +2
k k k k k k k k k k k k k k k k k k k k




Blank 2: -2 k k




True or false: Ex post facto studies seldom possess sufficiently powerful designs to demonstrate causality.
k k k k k k k k k k k k k k




True false question. - correct answer True
k k k k k k




The deviations from the regression predicted values are the error in fitting the line and are often called the -
k k k k k k k k k k k k k k k k k k k k




correct answer Blank 1: error k k k k