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STATISTCAL STUDY FOR MONITORING PRODUCTION QUALITY IN BEAM AND LONG BARS PLANT / STEEL AND IRON LYBIAN COMPANY | ||
| AL-TAQANI | ||
| Article 1, Volume 20, Issue 2, 2007, Pages 0-0 | ||
| Abstract | ||
| In this research we have used the composite hypothesis for monitoring the quality production in the plant of beams and long bars plant which is one of the plants that belongs to Iron and Steel Lybian Company, relying on the uniformly most powerful test with respect to the hypothesis to test the diameter precision of the iron pieces. A sample of 60 pieces has been selected that forms 6% of production, the test results appeared to support the hypothesis , that is, the plant is securing the required standard descriptions. | ||
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