In a random sample of 500 handwritten zip code digits, 466 were read correctly by an optical
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In a random sample of 500 handwritten zip code digits, 466 were read correctly by an optical character recognition (OCR) system operated by the U.S. Postal Service (USPS). USPS would like to know whether the rate is at least 90% correct. Do the data provide evidence that the rate is at least 90% at α = 0.05?
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1 The parameter of interest is the rate of zip codes that can be correctly read p 2 ...View the full answer
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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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