Find the critical value. Assume that the test is two-tailed and that n denotes the number of pairs of data.
-$\mathrm { n } = 50 , \alpha = 0.05$
A) $- 0.280$
B) $\pm 0.277$
C) $\pm 0.280$
D) $0.280$

Question

Quizplus · Accepted Answer

Since the test is two-tailed and alpha level is 0.05, we need to split the alpha level equally on both sides. The critical values for a two-tailed test with 0.025 alpha level on each side and 50 degrees of freedom is approximately ±0.280. Therefore, the correct answer is C.

Find the Critical Value n=50,α=0.05\mathrm { n } = 50 , \alpha = 0.05n=50,α=0.05

Find the Critical Value $\mathrm { n } = 50 , \alpha = 0.05$