Q.No.3 (a) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 100 of the components from each source are determined. The following tables are obtained: - Source A Source B Log x No of Log x No of Components 13 components 1.7202 1.5682 1.6232 1.6721 1.6990 12 15 1.6767 23 17 1.7160 28 12 10 1.6532 20 1.7559 1.7924 1.6284 19 1.6021 16 1.8261 05 1.5740 Which source is more consistent? Answer:

Q.No.3 (a) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 100 of the components from each source are determined. The following tables are obtained: - Source A Source B Log x No of Log x No of Components 13 components 1.7202 1.5682 1.6232 1.6721 1.6990 12 15 1.6767 23 17 1.7160 28 12 10 1.6532 20 1.7559 1.7924 1.6284 19 1.6021 16 1.8261 05 1.5740 Which source is more consistent? Answer:

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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(a) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 100 of the components from each source are determined. The following tables are obtained: - [3]Source ASource B Log xNo of componentsLog xNo of Components 1.72021.69901.67671.65321.62841.60211.57401122320191691.56821.62321.67211.71601.75591.79241.826113151728121005 Which source is more consistent?
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