文档介绍：QA Training
27 Dec 2004
Dec 2004
1
QC七大手法
流程圖、散佈圖、直方圖、管制圖、查核表、柏拉圖、魚骨圖
QC新七大手法
關聯圖、KJ法、系統圖、矩陣圖法、矩陣資料解法、PDPC法、箭形圖
Dec 2004
2
Basic Statistical Technique
Dec 2004
3
Data Presentation
Graphic presentation has more impact than figures
Tabulate figures where applicable
Dec 2004
4
Scatter Diagram
A
B
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
A
B
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Dec 2004
5
Pareto Chart
A
B
C
D
E
F
Dec 2004
6
Histogram
Dec 2004
7
Mode, Median, Mean
The Mode is the value that occurs most often or, equivalently, the point (or class) having the highest frequency.
The Median is the middle value in a set of numbers arranged in the order of magnitude.
The Mean (Average) is the sum of all values being considered divided by the total number of values.
Dec 2004
8
Normal Distribution (正态分布)
3s
3s
% of area is within 3s
Dec 2004
9
Mean
X=
Sxi
n
Dec 2004
10