A company operating three factories that use different types of production is interested in the number of
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A company operating three factories that use different types of production is interested in the number of defective products produced. The following table gives the results of a sampling study done on the number of defective parts.
(a) Find an estimate of the total number of defective parts. Using an unbiased estimation procedure.
(b) Find a 90 % confidence interval for this total.
Transcribed Image Text:
Number of defective parts in production of Type 1 55 12 Ni ... N ni xi si 22.3 10.7 Type 2 9 35.4 9.5 Type 3. 150 40 26.3 13.4
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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