We are interested in testing the following hypotheses. H0: P1- P2 ³ 0, Ha: P1- P2 < 0. The test statistic Z is computed to be 0.58. The p-value for this test is
A. 0.2810
B. 0.7190
C. 0.5620
D. 0.5800
solution
this is left tail test
Test statistic = 0.58
P(z < 0.58) = 0.7190 using z table
p value =0.7190
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