When performing a2test for independence in a contingency table with r rows and ccolumns, determine theupper-tail critical value of the test statistic in each of the following circumstances.

a.=0.05, r=6, c=3		d.=0.01, r=3, c=4
b.=0.01, r=5, c=3		e.=0.01, r=4, c=6
c.=0.01, r=5, c=4

a.Determine theupper-tail critical value of the test statistic using the values given in the problem statement for part(a).

The critical value is ____

(enter an integer or a decimal. Round to three decimal places asneeded