Find the Critical Value $n = 20 , \quad \alpha = 0.01$

Multiple Choice

Find the critical value. Assume that the test is two -tailed and that n denotes the number of pairs of data. $n = 20 , \quad \alpha = 0.01$

A) -0.570
B) 0.570
C) $\pm 0.447$
D) $\pm 0.570$