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Review Question - QID 214925

Statistical Distribution Characteristics of the Normal Distribution A certain percentage of all observations will always fall within +/- certain standard deviations of the mean QID: 214925 (M1.OMB.4888)
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QID 214925 (Type "214925" in App Search)
A pharmaceutical company is testing the efficacy of a novel lipid-lowering therapy called drug ABC101. Drug ABC101 was administered to a sample of 2,000 volunteers with moderate hyperlipidemia and the reduction in low-density lipoprotein (LDL) cholesterol was measured. The reduction in LDL cholesterol in this sample followed a normal distribution with a mean of 5.5 mg/dL and a standard deviation of 1.5 mg/dL. The pharmaceutical company is targeting a reduction in LDL cholesterol of at least 8.5 mg/dL and needs to provide an estimate of the efficacy of drug ABC101 for regulatory review. Approximately how many patients in this sample achieved the company’s target for LDL cholesterol reduction?
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