Sample Size Calculator For 1 Sample T Test (Finite Population)

Hint: Use this calculator to determine the number of samples to compare the mean of a population with a standard, expected or target value if you have a finite population (i.e. less than 50000)

Confidence Level

The minimum acceptable probability of preventing type I error

90%

95%

99%

99.9%

Power of the Test

The minimum acceptable probability of preventing type II error

50%

80%

90%

95%

99%

Reference Mean Value

This is the standard or target or the known mean

Sample Standard Deviation

This is the known or estimated (from research) or the sample standard deviation

Sample Mean Value

This is the mean of the sample (in question)

Number

Number2

Finite Population

Enter a number less than 50,000

Sample Size (1 - Sample T test) for finite population

Minimum samples required to check if your mean is similar to the standard or reference mean for the given finite population