For each of the following combinations of a and degrees of freedom (df), use Table VII in Appendix B to find the values of x2 2 and, x2(1 2) that would be used to form a confidence interval for 2 a 05, df 7 b 10, df 16 c 01, df 20 d 05, df 20 ...

a a 2 05 2 025 X 2 0257 160128 and X 2 9757 16898 ...

For each of the following combinations of a and degrees of freedom (df), use Table VII in

Question:

For each of the following combinations of a and degrees of freedom (df), use Table VII in Appendix B to find the values of x2α/2 and, x2(1-α/2) that would be used to form a confidence interval for σ2.
a. α = .05, df = 7
b. α = .10, df = 16
c. α = .01, df = 20
d. α = .05, df = 20