Assumptions for the one sample t test are as follows: The data in the variables of interest should be continuous.This means they take any numeric value, such as age in years, weight in kilograms or ...

A two-tailed test is the statistical testing of whether a distribution is two-sided and if a sample is greater than or less than a range of values.

Figure 8.12: Two-Sample Test for Proportions Dialog In Figure 8.12, the null hypothesis specifies that the proportions of success for the algorithms are equal (or, equivalently, that the difference ...

6.3 t-test. As always, there is a slight difference in the t-test arithmetic depending on whether we assume the two samples have equal variance. SAS Enterprise Guide runs both versions of the t-test ...

If the sample variance remained constant, to reach the 52% power, the two-sample test would require larger samples (n = m = 7). When assumptions are met, the two-sample t -test is the optimal ...