Suppose That a T Test Of $H _ { 0 } : \mu _ { 1 } - \mu _ { 2 } = 0 \text { versus } H _ { o } : \mu _ { 1 } - \mu _ { 2 } \neq 0$

Short Answer

Suppose that a t test of $H _ { 0 } : \mu _ { 1 } - \mu _ { 2 } = 0 \text { versus } H _ { o } : \mu _ { 1 } - \mu _ { 2 } \neq 0$ is based on 18 degrees of freedom. If the calculated value of the test statistic is t = - 1.80, then the P-value for this test is __________.