Precision In Sample Size Calculation. - e is desired precision half desired CI width. If you enter a precision of 5 Sampsizewill return the sample size needed for 95 default or any other confidence interval where the upper limit equals prevalence precisionand the lower limit equals prevalence - precision.
D is 5 or 005 in decimal terms. In other words if an investigation is too. Next determine the.
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The sample size n can be calculated using the following formula. Substituting the decimal values for each component in the formula we get. Steiger Vanderbilt University Power Precision and Sample Size Calculations 2 49. If you are not familiar with these terms click here.