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A Sample of Size 150 from Population 1 Has 40

Question 102

Multiple Choice

A sample of size 150 from population 1 has 40 successes. A sample of size 250 from population 2 has 30 successes. What is the value of the test statistic for testing the null hypothesis that the proportion of successes in population one exceeds the proportion of successes in population two by 0.05?


A) 1.645
B) 1.960
C) 1.977
D) 2.327

Correct Answer:

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