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.
Al Gore served as vice president from 1992-2000. As vice president, Gore took up a mission of environmental activism and advocacy. He was a lead delegate in the âEarth Summit,â in 1992 and a major force in the Kyoto Protocol in 1997.