For the combinations or u and degrees or freedom (df) in parts a through d below. use a table of critical values or x2 to find the values of xi\" and x31 _u,2) that would be used to form a confidence interval for 62. Click here to view Page 1 die table of critical values of the chi-square distribution Click here to View Page 2 of a table of critical values of the chi-square distribution. a. 060.05. df=9 xi\" = (Round to four decimal places as needed.) xf1-u/2) = (Round to four decimal places as needed.) b.u=0,10.df=13 xi\" = (Round to four decimal places as needed.) xf1_u,2) = (Round to four decimal places as needed.) c.u=0.01,df=21 xwz , (Round to four decimal places as needed.) 9&1 ,u/Z) = (Round to four decimal places as needed.) d. (I = 0.05, df=21 \"/2 = (Round to four decimal places as needed.) xf' -u/2) = (Round to four decimal places as needed.)