11.11 Determine the critical value and critical region that would be used in the classical approach to test the null hypothesis for each of the following multinomial experiments.

a. Ho : P(1)  P(2)  P(3)  P(4)  0.25, with   0.05

b. Ho : P(I)  0.25, P(II)  0.40, P(III)  0.35, with   0.01