Packet 4 Concept Map

Packet 4 Concept Map

1. Multiple Regression Model

   • Mean Square Error (MSE)
     • estimated random error variance
   • Analysis of Variance F-test (ANOVA)
     • determines if at least one of the slope parameters is useful in predicting our response variance
       • numerator: k degrees of freedom
         • denominator: (n-(k+1)) degrees of freedom
     • also called "Model Utility Test"
     • Ho: B1 = B2 = ... = Bk = 0
       • Ha: at least one B =/= 0

2. Inferences about Individual Parameters

   • Confidence Interval
   • Hypothesis Test

3. Timmy Hsueh

   • Claire O'Brien
     • Emma Lowry

4. Multiple coefficients of determination

   • R^2
   • R^2 adjusted

5. interaction model

   • Interaction indicated by crossing lines or different slopes

6. Nested Model

   • Test whether a group of k-g predictors should be kept in the model