A manufacturer of electronic calculators takes a random sample of 1200 calculators and finds that there are
Question:
(a) Construct a 95% confidence interval on the population proportion.
(b) Is there evidence to support a claim that the fraction of defective units produced is 1% or less?
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a 95 Confidence Interval on the population proportion n1200 x8 p 00067 Z220025...View the full answer
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Tarun Jana
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Related Book For 
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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