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Chapter 14: Multiple regression: Is the overall model useful?: Hypothesis testing
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Is the overall model useful?
Hypothesis testing- H0: R-sqr=0 vs H1 R-sqr gt 0
F-test with k and n-k-1 degrees of freedom
Do ALL the variables, taken as a group make an accurate forecast of Y?
Hypothesis testing- H0: R-sqr=0 vs H1 R-sqr gt 0
F-test with k and n-k-1 degrees of freedom
Do ALL the variables, taken as a group make an accurate forecast of Y?
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Chapter 14: Multiple regression: Is the overall model useful?: Hypothesis testing
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