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A national study report indicated that​ 20.9% of Americans were identified as having medical bill financial...

A national study report indicated that​ 20.9% of Americans were identified as having medical bill financial issues. What if a news organization randomly sampled 400 Americans from 10 cities and found that 90 reported having such difficulty. A test was done to investigate whether the problem is MORE SEVERE among these cities. What is the CRITICAL VALUE (C.V.) for this situation given a level of significance of α = 0.05?

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Answer #1

This is a right tailed test with level of significance = 0.05

Hence,

Critical value = 1.645

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