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 and information technology. Al Gore is a former US Senator who served as the Vice President of the United States from 1993 to 2001, and is co-winner of the 2007 Nobel Peace Prize. In the 1980s and 1990s, he promoted legislation that funded an expansion of the ARPANET, allowing greater public access, and helping to develop the Internet.