Created
August 1, 2013 14:11
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| mc <- lm(formula = SBR ~ Age, data = ch) | |
| m1 <- lm(formula = SBR ~ Age, data = subset(ch, Sex == "M")) | |
| m2 <- lm(formula = SBR ~ Age, data = subset(ch, Sex == "F")) | |
| sc <- sum(mc$residuals^2) | |
| s1 <- sum(m1$residuals^2) | |
| s2 <- sum(m2$residuals^2) | |
| k <- 2 | |
| # Test statistic | |
| fstat <- (sc - (s1 + s2)) / k / (s1 + s2) * (length(mc$residuals) - 2*k) | |
| fstat | |
| # Rejection region | |
| qf(.95,k, length(mc$residuals) - 2*k) | |
| # Pvalue | |
| pf(fstat,k, length(mc$residuals) - 2*k) |
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