STATISTICS PORTAGE CNSL 503 PRACTICE
EXAMINATION 2026 QUESTIONS WITH ANSWERS GRADED
A+
● Multiple Regression. Answer: Two or more predictors
● Multiple Correlation. Answer: R for multiple regression
● Adjusted R-Squared. Answer: R squared penalized for predictors
● Predictor Variable. Answer: Independent variable in regression
● Response Variable. Answer: Dependent variable in regression
● Multicollinearity. Answer: Predictors correlated with each other
● Dummy Variable. Answer: Coded categorical predictor
● Interaction Term. Answer: Product of two predictors
● Regression Assumptions. Answer: Linearity normality homoscedasticity
● Homoscedasticity. Answer: Equal variance of residuals
● Heteroscedasticity. Answer: Unequal variance of residuals
● Autocorrelation. Answer: Correlated residuals over time
● Nonparametric Test. Answer: Test without distribution assumptions
● Mann-Whitney U Test. Answer: Non-parametric two-sample comparison
● Wilcoxon Signed-Rank. Answer: Non-parametric paired test
● Kruskal-Wallis Test. Answer: Non-parametric one-way ANOVA
● Spearman Rank Correlation. Answer: Non-parametric correlation
● Kendall Tau. Answer: Rank correlation alternative
● Sign Test. Answer: Simple non-parametric test
EXAMINATION 2026 QUESTIONS WITH ANSWERS GRADED
A+
● Multiple Regression. Answer: Two or more predictors
● Multiple Correlation. Answer: R for multiple regression
● Adjusted R-Squared. Answer: R squared penalized for predictors
● Predictor Variable. Answer: Independent variable in regression
● Response Variable. Answer: Dependent variable in regression
● Multicollinearity. Answer: Predictors correlated with each other
● Dummy Variable. Answer: Coded categorical predictor
● Interaction Term. Answer: Product of two predictors
● Regression Assumptions. Answer: Linearity normality homoscedasticity
● Homoscedasticity. Answer: Equal variance of residuals
● Heteroscedasticity. Answer: Unequal variance of residuals
● Autocorrelation. Answer: Correlated residuals over time
● Nonparametric Test. Answer: Test without distribution assumptions
● Mann-Whitney U Test. Answer: Non-parametric two-sample comparison
● Wilcoxon Signed-Rank. Answer: Non-parametric paired test
● Kruskal-Wallis Test. Answer: Non-parametric one-way ANOVA
● Spearman Rank Correlation. Answer: Non-parametric correlation
● Kendall Tau. Answer: Rank correlation alternative
● Sign Test. Answer: Simple non-parametric test
