The t- test test's sizes for samples 1 and 2 are n1 and n2, respectively.
What can you infer from a sample t-test?
- The one-sample t-test is a statistical hypothesis test used to determine whether the population mean of an unknown sample is different from a given value.
- The t-test, also known as the t-statistic or t-distribution, is a popular statistical technique for analyzing differences between the means (averages) of two groups or between the means of one group and a standard value.
df for one sample t-test is n-1
where n is sample size
df for independent sample t-test is n1+n2-2
where n1 and n2 are respective sample sizes for sample 1 and sample 2 .
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