The discussion centers on the handling of negative t-test statistics in one-sided tests. When the sample mean is less than the mean under the null hypothesis (H_0), a negative t-test statistic is obtained. It is established that one should not simply take the absolute value of the t-statistic; instead, the critical value from the t-table should be considered. Specifically, for a one-sided test with a less-than alternative, the rejection criterion involves comparing the t-value directly to the negative of the critical value.
PREREQUISITESStatisticians, data analysts, and researchers involved in hypothesis testing who need clarity on the treatment of negative t-test statistics in one-sided tests.