Sample size based on confidence intervals. Moreover taking a too large sample size would also escalate the cost of study. Sample size determination haps 90.
The formula for determining sample size of the.
Sample size is a statistical concept that involves determining the number of observations or replicates the repetition of an experimental condition used to estimate variability of a phenomenon that should be included in a statistical sample. Sample size determination haps 90. Table 1 b page 26 shows that in this case the required sample size would be reduced to 173. Smaller the allowed margin for random error the larger b Using the formula for the sample sizes for a proportion the sample must be See in Table calculate.