Decision making based on single and double acceptance sampling plans for assessing quality of lots

• Authors: Ksenija Dumičić , Berislav Žmuk
• Languages of publication: EN

Abstracts

EN

Background: Acceptance sampling is a statistical tool of quality control. Sampling plans and operating characteristic (OC) curves are very useful for conducting acceptance sampling and provide the quality manager with tools to evaluate the quality of a production run or shipment. There are developed different sampling plans, but common used in practise are single and double acceptance sampling plans. Objectives: The goal of the paper is to test if applying of single and double sampling plan can lead to statistically significant different conclusion about quality level of observed lot. Methods/Approach: Statistical tests of difference in proportions are used to test if there is some statistically significant difference in probabilities of lot fraction defectives between a single and a double sampling plan at the same levels of probability of acceptance. Results: The results of the analysis show that in some cases there is statistically significant difference. Namely, the quality manager should be careful when he chooses to use, instead of the first, the second sampling plan with different parameters because on that way he could make statistically significant different conclusion about quality level of observed lot. Conclusions: The paper shows that some intentional manipulations by using different sampling plans are possible.

Keywords

EN

lot; single acceptance sampling plan; double acceptance sampling plan; operating characteristic curve; supplier's and buyer's risk

• Publisher: Sciendo
• Journal: Business Systems Research Journal
• Year: 2012
• Volume: 3
• Issue: 2
• Pages: 27-40

Dates

published

2012-09-01

online

2012-09-19

Contributors

author

Ksenija Dumičić

• Department of Statistics, Faculty of Economics and Business, University of Zagreb, Zagreb, Croatia

author

Berislav Žmuk

• Department of Statistics, Faculty of Economics and Business, University of Zagreb, Zagreb, Croatia

References

• Dumičić, K, Bahovec, V, Kurnoga Živadinović, N. (2006), "Analysing the Shape of an OC Curve for an Acceptance Sampling Plan: A Quality Management Tool", WSEAS Transactions on Business and Economics, Vol. 3, No. 3, pp. 169-177.
• Dumičić, K, Žmuk, B. (2011), "Impact of Applies Acceptance Sampling Plan on Decisions in Quality Management", in Zadnik Stirn, L, Žerovnik, J, Povh, J, Drobne, S, Lisec, A. (Eds), Proceedings of the 11th International Symposium on Operational Research (SOR 2011), Slovenian Society Informatika - Section for Operational Research, Dolenjske Toplice, pp. 183-188.
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• NIST/SEMATECH (2003), "e-Handbook of Statistical Methods", available at:
• Starbird, S. A. (1994), "The Effect of Acceptance Sampling and Risk Aversion on the Quality Delivered by Suppliers", The Journal of the Operational Research Society, Vol. 45, No. 3, pp. 309-320.
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Identifiers

DOI

10.2478/v10305-012-0010-4