Solver one proportion z test
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Suppose that 50% of all adult Americans believe the federal budget deficits at recent levels cause long-term harm to the nations's ecomony. What is the probability that more than 58% of a random sample of 250 adults Americans would hold this belief?
If the sample of 250 was made up of adults randomly selected from each of the eight regions of the U.S. which sampling design was used?
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Hi there,
Here is my answer:
First, check the assumption:
SRS(simple random sample) is ...
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