In a test for equality of two proportions,the sample proportions were p1 = 12/50 and p2 = 18/50.The test statistic is
A)−1.44
B)−1.31
C)−1.67
D)Impossible to determine without knowing α.

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The Answer of In a test for equality of two proportions,the sample proportions were p1 = 12/50 and p2 = 18/50.The test statistic is
A)−1.44
B)−1.31
C)−1.67
D)Impossible to determine without knowing α.

In a Test for Equality of Two Proportions,the Sample Proportions