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空腹血糖的正常水平为 \mu_0 = 120 mg/dL。一个 n = 50 个糖尿病患者的样本给出 \bar X = 128 mg/dL, mg/dL。在1%水平上,平均血糖升高了吗?
空腹血糖的正常水平为 \mu_0 = 120 mg/dL。一个 n = 50 个糖尿病患者的样本给出 \bar X = 128 mg/dL, mg/dL。在1%水平上,平均血糖升高了吗?
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