A 95 confidence level andP5are assumed for Equation 5. 0 5 2 8 6. The above sample size calculation formula is based on the assumption of normal approximation.
Calculating sample size for different study designs and different outcome measures.
Sample Size Formula By Kothari. Slovins formula is a very general equation used when you can estimate the population but have no idea about how a certain population behaves. Of samples N total population e error margin margin of error When to use slovins formula. The survey therefore needs to include 286 employees.