Question: You are interested in seeing if a new test will help to determine who will be successful in a training program. The current rate of

You are interested in seeing if a new test will help to determine who will be successful in a training program. The current rate of success is 70% for 200 students. When the new test is implemented, he rate increases to 85% for the 50 students who pass the test and are allowed into the program. Is the difference significant?

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