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Doctors are researching a new cholesterol medication for teenagers. Eighteen (18) randomly selected male teenagers have taken the new medication long enough for their cholesterol

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Doctors are researching a new cholesterol medication for teenagers. Eighteen (18) randomly selected male teenagers have taken the new medication long enough for their cholesterol levels to stabilize. Their data follow a normal distribution. The population standard deviation is 0 = 30. A confidence interval for

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