Self-Graded Chapter Practice Quiz

Introduction to Linear Regression and Correlation Analysis

Covers scatter plots and the correlation coefficient r, the least-squares simple linear regression equation and its slope/intercept interpretation, the coefficient of determination r², testing the significance of the regression slope, confidence vs. prediction intervals, and common misuses of regression such as extrapolation and correlation-vs-causation. Submit for instant grading — every question reveals a full answer key explaining why the correct answer is correct and why the others are wrong.

Total: 16 points Time limit: 20 minutes Questions: 11 Format: 8 MCQ + 3 Short Answer

Sections covered: 14.1 Scatter Plots and Correlation · 14.2 Simple Linear Regression Analysis · Testing the Significance of the Regression Model · 14.3 Uses for Regression Analysis: Description vs. Prediction · Potential Problems When Regression Analysis Is Used Incorrectly.

Multiple Choice

8 points · 1 each

Short Answer

8 points

0 / 16

Review the answer key on each question above for anything you missed.

0/8MCQ 0/8Short Answer