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T-Test of independent means:
StarStat tests the difference between means for two groups. The t-test procedure computes the "Student's t" statistic for
testing equality of means of independent samples. More information...
Confidence levels computed provide the probability that a difference at least as large as noted would have occurred by
chance if the two population means were in fact equal.
To run a t-test, you will be prompted to provide the following:
Means for the two independent groups
Sample sizes for the two groups
Standard errors of the two means
Both one- and two-tailed probabilities are computed using the data specified. As well as displaying actual probability
levels, StarStat provides "broad" level of testing at 80%, 90%, 95% and 99% confidence levels, using 2-tailed tests.
Means for the two independent groups
Sample sizes for the two groups
Standard errors of the two means
Both one- and two-tailed probabilities are computed using the data specified. As well as displaying actual probability
levels, StarStat provides "broad" level of testing at 80%, 90%, 95% and 99% confidence levels, using 2-tailed tests.
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