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.
Vice President Al Gore. Vice President Al Gore was born on March 31, 1948, in Carthage, Tennessee. Fresh out of Harvard University in 1969 with a degree in government, he enlisted in the Army to serve in the Vietnam War.