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.
Richard (Dick) Cheney (born January 30, 1941 in Lincoln, Nebraska) succeeded Al Gore as the forty-sixth Vice-President of the United States, serving between January 20, 2001 aâ¦nd January 20, 2009, including the whole of the year 2002.