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ACADEMIC PROJECT, QUESTIONNAIRE RELIABILITY CHECKING, SPSS DATA ANALYSIS, PLAGIARISM CHECKING, BOOK BINDING, BOOKS SALES, E-BOOKS DOWNLOADING, BOOK LAYING AND INDEXING, ISBN BARCODE IMAGE GENERATION, AND BOOK PUBLISHING OpenBook Sample Size Calculators In order to generalize from a random sample and avoid sampling errors or biases, a random sample needs to be of adequate […]