Type of Variable:
TPZero - Tool for Ac=0 Plans
TPZero - Screen Shots
TP105 - Software for Attributes
TP414 - Software for Variables
Lot Mean Examples
TP781 - Software for Reliability
Sampling Practices /Applications Area
Bulk liquids, powders, and pellets
How to Order
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New: Version 3 of TP105 & TP414 for Windows
The goal -- to
prevent the use of existing materials, products, processes, and services of off-grade
The software develops acceptance
sampling plans based on their operating characteristic curves.
These programs perform the statistical calculations for the sample size
and decision rules of acceptance sampling plans. They use the two-point
method , in which you specify two points of the operating characteristic curve.
- See the tutorial for a detailed description of the
operating characteristic curve.
- Typical Uses: The
most frequent applications of this software involves the design of decision rules for accepting and rejecting material and
processes related to manufacturing, engineering, and laboratory. For manufacturing
applications, the plans are used for incoming, in-process, and outgoing materials.
- Two-Point Method: These three
programs develop acceptance sampling plans by the two-point
method. They design decision rules which consist of the sample size and acceptance
limit(s). When you specify two points on the Operating
Characteristic (OC) Curve, the program determines the decision rule which satisfies
that curve. Thus the terms: two-point method. It allows you to assure that acceptance
decisions meet the probabilities or risks that you choose.
- Reverse of the Two-Point Method:
In the reverse procedure, you specify a decision rule and the program calculates its
OC-Curve. This feature allows you to use a "trial and error" approach, and to
analyze existing sampling plans to determine the level of protection that they provide.
- Sequential Sampling Plans:
These programs will also develop sequential
sampling plans by the two-point method. A sequential decision rule can be developed to
match the OC-Curve of any fixed sample size decision rule.
- Performance Curves: These
programs will list and plot the OC, AOQ, ASN, and ARL
curves of any decision rule.
- Statistically Based: These
three programs use both the Consumer's Risk and the
|Sampling Plan Type
|Attribute: Defects, Defectives
|Variables: Mean, ISL
|Reliability: MTTF, Reliability