| Analysis of Variance |
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| q | We then use F-statistics to test the ratio of the
variance explained by |
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| the regression and the variance not explained by the regression: |
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| F = (b2Sx2/1)
/ (Se2/(N-2)) |
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| q | Select a X% confidence level |
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| q | H0: b = 0 |
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| (i.e., variation
in y is not explained by the linear regression but |
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| rather by chance
or fluctuations |
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| H1: b ¹ 0 |
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| q | Reject the null hypothesis at the a significance level if F>Fa(1, N-2) |
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