In the analysis of Exercise 17.28, it was found that 9 of the sampled technical pages and

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In the analysis of Exercise 17.28, it was found that 9 of the sampled technical pages and 15 of the sampled nontechnical pages contained no errors. Find a 90%

confidence interval for the proportion of all pages in this book that have no errors.

17.30 Refer to the data of Exercise 17.27. If 80 managers were sampled, determine how many sample members would be from subdivision 1 under each of the following schemes.

a. Proportional allocation

b. Optimum allocation, assuming that the stratum population standard deviations are the same as the corresponding sample quantities

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Statistics For Business And Economics

ISBN: 9781292436845

10th Global Edition

Authors: Paul Newbold, William Carlson, Betty Thorne

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