Figure 1 | Scientific Reports

Figure 1

From: Six Sigma can significantly reduce costs of poor quality of the surgical instruments sterilization process and improve surgeon and operating room personnel satisfaction

Figure 1

Normal distribution. The horizontal axis showed the distance from the mean, denoted in units of standard deviation (represented as σ). The greater the standard deviation, the larger the spread of values. The upper and lower specification limits (USL and LSL) are at a distance of 6 σ from the mean.

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