Formulas For Sample Size Determination. If N100 then the corrected sample size would be 18600285 6526 or 66. If the population is N then the corrected sample size should be 186N N185.
132 ISSUES 1321 In practice such formulae cannot be used The simple formula above is adequate for giving a basic impression of the calculations required to establish a sample size. Moreover taking a too large sample size would also escalate the cost of study. But some researchers support a rule of thumb when using the sample size.
But some researchers support a rule of thumb when using the sample size.
There is no specific rule of thumb to determine the sample size. If the population is N then the corrected sample size should be 186N N185. N z 2 p 1 - p e 2. If youd like to do the calculation by hand use the following formula.
