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Fermil, Vivien, Lab 6

Research Question: Are Exam Averages correlated with student Final Exam Scores?

My explanatory variable is the Exam Averages and my response variable is Final Exam Scores.

Least-squares equation: Final Exam= 1.6404 (Exam Average) - 57.2155

R= 0.885

R-sq= .784

There is a 78.4% of variation in Exam Averages is accounted for by our regression line.

Result 1: Boxplot (lab6)   [Info]

Result 2: Simple Linear Regression(Lab 6)   [Info]

Result 3: Simple Linear Regression (Lab6)   [Info]

Result 4: Simple Linear Regression (lab6)   [Info]
Simple linear regression results:
Dependent Variable: Final Exam
Independent Variable: Exams Average
Final Exam = -57.215454 + 1.6403615 Exams Average
Sample size: 34
R (correlation coefficient) = 0.88519757
R-sq = 0.78357473
Estimate of error standard deviation: 11.342175

Parameter estimates:
ParameterEstimateStd. Err.AlternativeDFT-StatP-value
Intercept-57.21545411.638352 ≠ 032-4.916113<0.0001
Slope1.64036150.15239768 ≠ 03210.763691<0.0001

Analysis of variance table for regression model:
SourceDFSSMSF-statP-value
Model114904.42114904.421115.85704<0.0001
Error324116.6378128.64493
Total3319021.059

Residuals stored in new column: Residuals