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For many years, a large book publisher has published an expansive series of introductory science books for the general public. The chief editor of the series has always encouraged his writers to write reasonably short books. The chief editor has some recollections regarding the mean and standard deviation of the pages of the books in the series. The chief editor takes a random sample of 25 books in the series. These books have a sample mean of 167 pages with a sample standard deviation of 28 pages. The chief editor's recollections are that the books published in the series have a population mean of 151 pages with a population standard deviation of 31 pages. Fill in the blanks below with the proper notation for the population mean, the population standard deviation, the sample mean, and the sample standard deviation. Population mean: (Choose one) = 151 pages X 5 ? Population standard deviation: = 31 pages Sample mean: = 167 pages X Sample standard deviation: = 28 pages 2