Single Sample T-Test Calculator
A single sample t-test (or one sample t-test) is used to compare the mean of a single
sample of scores to a known or hypothetical population mean. So, for example, it
could be used to determine whether the mean diastolic blood pressure of a particular
group differs from 85, a value determined by a previous study.
- The data is normally distributed
- Scale of measurement should be interval or ratio
- A randomized sample from a defined population
H0: M - μ = 0, where M is the sample mean and μ
is the population or hypothesized mean.
As above, the null hypothesis is that there is no difference between the sample
mean and the known or hypothesized population mean.