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Owner: r.becerra
Created: Oct 10, 2018
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Becerra, Rosa, Lab 6

Research Question: Are homework quizzes correlated with quiz averages?

My explanatory variable is the Homework Average and my response variable is Student Quizzes.

Least-squares equation: Homework Average = -40.501186 + 1.3538653 Quiz Average

R= 0.55951575

R-sq= 0.3130

There is a 31.3% of variation in Quiz Average scores is accounted for by our reg. Line.

Result 1: Boxplot with Residuals   [Info]

Result 2: Residuals Vs. Quiz Average   [Info]

Result 3: Fitted Line HW and Quiz Average   [Info]

Result 4: Simple Linear Regression   [Info]
Simple linear regression results:
Dependent Variable: HW Average
Independent Variable: Quiz Average
HW Average = -40.501186 + 1.3538653 Quiz Average
Sample size: 34
R (correlation coefficient) = 0.55951575
R-sq = 0.31305788
Estimate of error standard deviation: 15.793215

Parameter estimates:
ParameterEstimateStd. Err.AlternativeDFT-StatP-value
Intercept-40.50118630.443137 ≠ 032-1.33038810.1928
Slope1.35386530.35452611 ≠ 0323.81880280.0006

Analysis of variance table for regression model:
SourceDFSSMSF-statP-value
Model13637.43793637.437914.5832550.0006
Error327981.6209249.42565
Total3311619.059

Residuals stored in new column: Residuals