When Testing $$H _ { 0 } : \pi _ { 1 } - \pi _ { 2 } = 0 \text { versus } H _ { 1 } : \pi _ { 1 } - \pi _ { 2 } \neq 0$$

Multiple Choice

When testing $$H _ { 0 } : \pi _ { 1 } - \pi _ { 2 } = 0 \text { versus } H _ { 1 } : \pi _ { 1 } - \pi _ { 2 } \neq 0$$ , the observed value of the Z test statistic was found to be - 2.13.The p-value for this test is

A) 0.0166.
B) 0.0332.
C) 0.9668.
D) 0.9834.