Double sampling plan and introduction to multi sampling

This presentation gives a basic idea about application of double and multi sampling methods with application.

1. DOUBLE AND MULTI SAMPLING PLAN Presented By Hiran Gabriel D J 1

2. Sampling Sampling is the act, process, or technique of selecting a suitable sample, or a representative part of a population for the purpose of determining parameters or characteristics of the whole population. 2

3. Double sampling 3

4. Process flow chart 17/12/18 4

5. Conditions for double sampling plan 5

6. Design of Double sampling plan 6

7. Advantages and disadvantages 7

8. Case study A bearing cap has been evaluated by double acceptance sampling techniques in a bakery machines manufacturing company in turkey. Software used WinQSB acceptance sampling module 8

9. Design of experiment 17/12/18 9

10. Results obtained 17/12/18 STATISTICS QUALITY CONTROL AND DOE 10

11. Sampling parameters 17/12/18 11

12. Graphs 17/12/18 12

13. Multiple sampling plan 17/12/18 13

14. Merits It is very flexible as compared to other methods of sampling. It leads to administrative efficiency by permitting the field work to be concentrated and yet covering a large area. It is of great utility in surveys of undeveloped areas where no up to-date and accurate frame is available for subdivision of the materials into reasonably small sample units. 17/12/18 STATISTICS QUALITY CONTROL AND DOE 14

15. Demerits It is likely to cause many errors as it involves a process of divisions and sub-divisions of the various strata or clusters in different stages. It leads to greater variability of the estimates than any other method of sampling, In general, it is less efficient than a suitable single stage random sampling. 17/12/18 15

16. Reference An Application of Single and Double Acceptance Sampling Plans for a Manufacturing System Erdal AYDEMIR, Mehmet Onur OLGUN Suleyman Demirel University, Engineering and Architecture Faculty, Industrial Engineering Department, Isparta , Turkey [email protected] , [email protected]