Spc 是 统计过程控制，它是一种质量控制方法，这个方法采用控制图来监视和控制相关过程，帮助确保流程高效和稳定地运行，这个视频是优思学院六西格玛课程 [1] 的其中一个课堂，介. Spc的敏感度会随着子组的总数量（n）的增加而提升，在控制图的基础上进行决策会产生两种类型的错误（type 1 / type 2），这些错误是相互依赖的，也是与子组的总数量样本量有很大关.
SPC Credit Union Hartsville SC
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