TRAINING SIX-SIGMA(PPT 66页)
- 所属分类:
- 六西格玛管理
- 文件大小:
- 1380 KB
- 下载地址:
- 相关资料:
- sigma
TRAINING SIX-SIGMA(PPT 66页)内容简介
Many natural phenomena and man-made processes are observed to have normal distributions, or can be closely represented as normally distributed.
For example, the length of a machined part is observed to vary about its mean due to:
temperature drift, humidity change, vibrations, cutting angle variations, cutting tool wear, bearing wear, rotational speed variations, fixturing variations, raw material changes and contamination level changes
If these sources of variation are small, independent and equally likely to be positive or negative, the length will closely approximate a normal distribution.
..............................
For example, the length of a machined part is observed to vary about its mean due to:
temperature drift, humidity change, vibrations, cutting angle variations, cutting tool wear, bearing wear, rotational speed variations, fixturing variations, raw material changes and contamination level changes
If these sources of variation are small, independent and equally likely to be positive or negative, the length will closely approximate a normal distribution.
..............................
用户登陆
六西格玛管理热门资料
六西格玛管理相关下载