Cochran Formula For Known Population. The 99 confidence level 2 To put it more precisely. L Ey E L WhYh w yh hl hl snce the estimates are unbiased in individual strata.
SS Z 2 p 1 p C. Formulas for Sample Size SS For Infinite Sample Size. If the population is N then the corrected sample size should be 186N N185.
Pand q are the estimate of the variance Cite.
These are xed population quantities to be estimated. 5 of population These procedures result in a. The sample size for an infinite unknown population and for a finite known population is given as. A 95 confidence level andP5are assumed for Equation 5.
