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Free Online Calculator

OpenBook Cochran Calculator

OpenBook Cochran Calculator  OpenBook Cochran Calculator (OC Calculator, 2022) is a free online sample size calculator developed to help research students or other researchers from various fields worldwide, having problem in calculation using Cochran’s Sample Size Formula manually, determine sample size accurately. Cochran’s Sample Size Formula is written as: Where: n = Number of Samples, N […]

OpenBook Yamane Calculator

OpenBook Yamane Calculator  OpenBook Yamane Calculator (OY Calculator, 2022) is a free online sample size calculator developed to help research students or other researchers from various fields worldwide, having problem in calculation using Taro Yamane Formula manually, determine sample size accurately. Taro Yamane Formula is written as n = N / (1 + Ne2) Where: n = […]