Question

Can t-test statistic have a negative number?

Answer 1

Yes, just like a z-statistic

Explanation:

A t-distribution will have a mean of zero just like a normal distribution. So, the values include all real numbers from `-oo to oo`

hope that helps

Source: http://ci.columbia.edu/ci/premba_test/c0331/s7/s7_4.html