In statistics, sample size is very useful to measure the amount of observations in the sample population. It aids to calculate the difference in-between the population from sample.

SS = Sample Size

Z = Z value (example, 1.96 for 95% confidence level)

p = Percentage of population (expressed in decimal. For example, 0.5 used for sample size needed)

C = Confidence level (expressed in decimal. Example, 0.04 = + 4)

Pop = Population

Enter the inputs in the below online sample size calculator and then press calculate to find the sample size for finite and infinite population.

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