This free online video program "explains the basic reasoning behind tests of significance and the concept of null hypothesis. The program shows how a z-test is carried out when the hypothesis concerns the mean of a normal population with known standard deviation. These ideas are explored by determining whether a poem “fits Shakespeare as well as Shakespeare fits Shakespeare.” Court battles over discrimination in hiring provide additional illustration. This individual video is accessed by scrolling down to the "Individual Program Descriptions - 20. Significance Tests" and click the "VOD" icon at the top-right of the description.
Date Record Checked: 2004-03-09 00:00:00