For the combinations of a and degrees of freedom (df) in LO6 parts a through d below,
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For the combinations of a and degrees of freedom (df) in LO6 parts a through d below, use either Table IV in Appendix B or statistical software to find the values of x2 a>2 and x21 1 - a>22 that would be used to form a confidence interval for s2.
a. a = .05, df = 6
b. a = .10, df = 14
c. a = .01, df = 22
d. a = .05, df = 22
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