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

question 127

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.

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