Sample Size to Estimate a Population Mean
This calculator calculates the sample size needed to estimate a population mean. Please report the error to Dr. Jessica Kuang at jkuangATvcccd.edu.
To learn how to use this calculator, please watch a short video here.
Fill in the population standard deviation (\(\sigma\)), the error bound (E), and the confidence level (CL). Write the confidence level as a decimal. For example, for a 95% confidence level, enter 0.95 for CL. Then hit Calculate and assuming the population is normally distributed, the necessary sample size will be shown.
|Standard Deviation (\(\sigma\)):||Error Bound (E, enter a decimal):||Confidence Level (enter a decimal):|
|Sample Size (n):|
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