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According to a survey in a country, 18 % of adults do not own a credit card. Suppose a simple random sample of 900 adults

According to a survey in a country, 18 % of adults do not own a credit card. Suppose a simple random sample of 900 adults is obtained.

Would it be unusual for a random sample of 900 adults to result in 144 or fewer who do not own a credit card? Why?

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