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.
More in Politicians. 1  Al Gore Net Worth Albert Arnold Al Gore, Jr. (born March 31, 1948) is an American politician and environmentalist who served because the 45th Vice President of the US from 1993 to 2001 below President Invoice Clinton. 2  Queen Elizabeth Net Worth The Queen Mum has a lot to be thankful for.