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Researchers recruit a random sample of n = 200 individuals to participate in a Phase II...

Researchers recruit a random sample of n = 200 individuals to participate in a Phase II clinical trial of a new drug to address high blood pressure in a certain population. If the systolic blood pressure in the population is normally distributed with mean = 120 mm Hg and standard deviation = 15 mm Hg, what proportion of individuals in the population have SBP higher than 139.5mm Hg?

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