Given a sample with r = -0.541, n = 20, and ? $\alpha$ = 0.01, determine the critical values $t _ { 0 }$ necessary to test the claim $\text { Q }$ ? = 0.
A) $\pm 2.878$
B) $\pm 1.729$
C) $\pm 2.093$
D) $\pm 2.540$

Question

Quizplus · Accepted Answer

The critical value $t _ { 0 }$ for testing the claim that ρ = 0 with $n = 20$ (which gives us degrees of freedom $df = n - 2 = 18$) and $\alpha = 0.01$ (two-tailed test) can be found in a t-distribution table or using statistical software. For $\alpha = 0.01$ and $df = 18$, the critical value is $\pm 2.878$.

Given a Sample with R = -0 α\alphaα = 001, Determine the Critical Values

Given a Sample with R = -0 $\alpha$ = 001, Determine the Critical Values