Type the Coefficients block of summary(fit) for the Northfield regression, now reading Std. Error, t value and Pr(>|t|) as inference.
Type the Coefficients block of summary(fit) for the Northfield regression, now reading Std. Error, t value and Pr(>|t|) as inference.
Answer
Estimate Std. Error t value Pr(>|t|) (Intercept) 544.1767 10.5049 51.80 3.47e-09 *** income 2.0659 0.1432 14.42 6.96e-06 ***
income row: Std. Error 0.1432 = s/√SS_xx; t value 14.42 = 2.0659/0.1432 on 6 df; Pr(>|t|) 6.96e-06 is the two-sided p for H₀: β₁ = 0; *** means p < 0.001.
H-W3 (two annotated outputs); BCc ch 8; R output from a live Rscript session on the Northfield data