Estimate Minimum Sample Size. If you are unsure of the right value to use set p equal to 05. This estimate is low.
Hence there is no minimum or maximum for training sample size. This would give you a rough but still useful idea about their opinions. Use A 005 Margin Of Error Use A Confidence Level Of 99 And Assume That No Previous Estimates Of The Percentage Of Managers Who Have A Cat Are Available.
Where N is the population size r is the fraction of responses that you are interested in and Zc100 is the critical value for the confidence level c.
In order to estimate the necessary sample size we need to know the effect size. Note that c h does not include indirect costs such as. Working out sample size from confidence intervals. Choose a number closer to the minimum if.
