9. Give the critical 2 values for testing the null hypothesis of independence at 05 and 01 for each of the following contingency

9. Give the critical χ2 values for testing the null hypothesis of independence at α 05 and

α 01 for each of the following contingency tables:

(a) 2 × 3 table

(b) 2 × 6 table

(c) 3 × 5 table

(d) 2 × 2 table