Simple Linear Regression

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Presentation transcript:

Simple Linear Regression NBA 2013/14 Player Heights and Weights

Data Description / Model Heights (X) and Weights (Y) for 505 NBA Players in 2013/14 Season. Other Variables included in the Dataset: Age, Position Simple Linear Regression Model: Y = b0 + b1X + e Model Assumptions: e ~ N(0,s2) Errors are independent Error variance (s2) is constant Relationship between Y and X is linear No important (available) predictors have been ommitted

Regression Calculations

Inference Concerning b1

EXCEL Output and Inference for b0

Estimating Mean and Predicting New Response at x=x*

Coefficients of Correlation and Determination

Analysis of Variance and F-Test

Linearity of Regression

Height and Weight Data – n=505, c=18 Groups Do not reject H0: mj = b0 + b1Xj