Tool for Quality Control Design and Evaluation
Tool for Quality Control Design and Evaluation
This Demonstration can be used to estimate various parameters of a measurement process and to design the quality control rule to be applied. You define the parameters of the control measurements that are the assigned mean, the observed mean, and the standard deviation, in arbitrary measurement units. In addition, you define the quality specifications of the measurement process, that is, the total allowable analytical error (as a percentage of the assigned mean), the maximum acceptable fraction of measurements nonconforming to the specifications, and the minimum acceptable probabilities for random and systematic error detection. Finally, you choose the number of control measurements.
n
S(1,n,dσ)
c
m
o
m
o
d
m
o
σ
m
o
m
o
f
The parameters are estimated and the functions are plotted if ≤f≤, where is the fraction nonconforming and is the maximum acceptable fraction nonconforming.
-100
10
f
max
f
f
max