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koklok123 koklok123
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6 years ago
A sample of size 100 selected from one population has 60 successes, and a sample of size 150 selected from a second population has 95 successes. The test statistic for testing the equality of the population proportions equal to:
 a. -0.5319.
  b. 0.7293.
  c. -0.419.
  d. 0.2702.
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