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how to calculate the sample size. More than two groups supported for binomial data. This is used to determine how the study should be conducted what data should be collected and how its results should be analysed and statistically tested.
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Determine the total population size. This is used to determine how the study should be conducted what data should be collected and how its results should be analysed and statistically tested. Discover how many people you need to send a survey invitation to obtain your required sample.
The equation for calculating sample size is shown below.
Z 1645 p 05 e 004. 258 2 05 1-05 001 2 665605 0500001 16641 The sample size for the chosen parameters should be 16641 which is a very large sample. Confidence Interval Confidence Level. Each of the shaded tails in the following figure has an area of 0025.
