Use the data presented in the text, Chapter 7, question 12. In that question, r obt = - 0.69 and N = 10. Using a = 0.05 2 tail , is this a significant value for r obt ?
A) Yes, df = 9, r crit = ±0.6021
B) Yes, df = 8, r crit = ±0.6319
C) Yes, df = 8, r crit = - 0.6319
D) Yes, df = 8, r crit = +0.6319

Question

Quizplus · Accepted Answer

With N = 10, degrees of freedom (df) is 8. The critical value for r at α = 0.05 (two-tailed) with df = 8 is ±0.6319. Since -0.69 is less than -0.6319, it is significant.

Use the Data Presented in the Text, Chapter 7, Question