The following 2x3 contingency table contains observed frequencies for a sample of 200.
A B C
P 20, 44, 50
Q 30, 26, 30
Total 50, 70, 80
Test for independence of the row and column variables using the χ 2 test with α = .05.
Compute the value of the χ 2 test statistic (to 2 decimals).