Four quality-control officers were asked to test 1214 randomly selected electronic components from a companys production line,
Question:
Four quality-control officers were asked to test 1214 randomly selected electronic components from a company’s production line, and to report the proportions that they found to be defective. The proportions reported were: 2/333, 3/411, 0/187 and 4/283.
These figures confirm what the manager thought; that about k% of the components produced are defective.
Of the 7150 components that will be produced next month, approximately how many does the manager expect to be defective?
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let us say that this company produces electronic components with an average ...View the full answer
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Related Book For 
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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