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mayahassan

Re: Re: How to Calculate Sample Size?

i need help in calculation of sample size for my study..anybody to help me..whatever i studied for it is very statistical terms,,i m unable to understand..please if anybody can help me in this.

malala

Re: Re: How to Calculate Sample Size?

I am going to calculate simple size for a national study. Prevalence of a disease is estimated . 03% how i should calculate the sample size with 95% CI and 80 degree of power

shehani

Re: How to Calculate Sample Size?

ibrahim_ap

Re: Help Needed: How to Calculate Sample Size?

The required sample size is 91

EyeQ71

Help Needed: How to Calculate Sample Size?

I want to do a study to find out normative data of some cell count in our population.

Previous study shows Mean cell count of 2641cells per person with SD of 341 cells. What should be the sample size to do study with 95% CI , 90% study power and acceptle cell count error of 100cells.

How and where I can get sample size calculater for this sample?