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It is known that 10% of the population is afraid of being alone at night If a random sample of 15 Americans is selected, what
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Benonial li 5;0.10 ) مهX ادوو.ه) د ره ۵.۱ ) كفاك و Isc Sog د) el x- ها - ملا (1-4). مه (= ]م

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