The t test is a two-tailed test because the tail of the distribution on each side of the mean is analyzed. For many laboratory measurements or clinical trials, one would want a two tailed test because the value or the outcome could be either above or below the mean.
Al Gore, in full Albert Arnold Gore, Jr. (born March 31, 1948, Washington, D.C., U.S.), 45th vice president of the United States (1993â2001) in the Democratic administration of President Bill Clinton.
The 2007 winner of the Nobel Peace Prize and the 45th Vice  President of the United States.   Albert Arnold Al Gore, Jr. (born March 31, 1948) served as  the the 45th â¦Vice President of the United States from 1993 to 2001  under President Bill Clinton.    Al Gore ran for president in 2000.