子组为1怎么计算cpk？ - 六西格玛绿带黑带考试|视频课程|考试题库一站式平台

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子组为1怎么计算cpk？

cpk

连续取样50个，但每次只取一个样品，这样的子组数量是不是1？当子组为1怎么计算cpk？因为根据公式计算标准差要查d2，但d2的表格里最小的子组是2，这该怎么办？

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zkl59 未验证用户
2023-01-28 20:12

每次取一个样品，可以把前后看成是一个子组，因此子组数量为2，查d2表时，选择n=2的参数

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