Dear Shannu,
Why don't you give all the information? What do you mean by ".. the populaton size is very low. "? If the population is that low, why not study the whole population?
Kindly see the exchange of views at
https://www.citehr.com/319453-key-learning.html to realise the futility of posting short messages. And
https://www.citehr.com/324807-project-report.html to see how people who make an attempt are helped.
Had you searched the web you would have got the formula. For example, see
Sample Size Formulas for our Sample Size Calculator - Creative Research Systems found at
GoogleAs you have a finite sample you have to use the second formula. Also see
Sample Size Table found at
Google
Have a nice day.
Simhan
A retired academic in the UK
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