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Some Aspects of Designing Industrial Test Programs
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English
Abstract
To provide sound answers to specific problems, it is possible to design appropriate test programs using methods developed by mathematical statisticians. A simple factorial design, as applied to the study of green compressive strength of a foundry sand mix, is outlined and discussed in some detail. The efficiency with which conclusions are drawn from the test results is attributed to the fact that factorial and fractional factorial designs enable the test engineer to use every observation in making each conclusion. Furthermore, the same designs provide an opportunity for examining the behavior of one variable at more than one level of each of the other variables included in the test program. Some simple methods of numerical analysis are applied to the test data preliminary to their interpretation.
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Citation
Hromi, J., "Some Aspects of Designing Industrial Test Programs," SAE Technical Paper 690022, 1969, https://doi.org/10.4271/690022.Also In
References
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- Davies, O. L. “The Design and Analysis of Industrial Experiments.” New York Hafner Publishing Co., Inc. 1954
- Brownlee, K. A. Kelley B. K. Lorraine, P. K. “Fractional Replication Arrangement for Factorial Experiments with Factors at Two Levels.” Biometrika XXV Parts III and IV December 1948
- Davis A. L. Hay, W. A. “The Construction and Uses of Fractional Factorial Designs in Industrial Research.” Biometrics 6 3 September 1950 233 249
- Box G. E. P. Hunter, J. S. “The 2 k-p Fractional Factorial Designs.” Technometrics 3 No. 3 and No. 4, Parts I and II August and November 1961