On Thu, 8 Feb 2001, jim clark wrote in part:
We all agree that it is confusing, but I do believe that the use
of one-tailed and two-tailed to refer to directional vs.
non-directional hypotheses (rather than uniquely to one or two
tails of a distribution) is very wide-spread and quite common.
In article [EMAIL PROTECTED],
[EMAIL PROTECTED] (Paul W. Jeffries) writes:
...
The textbooks say that a ratio scale has the properties of an interval
scale plus a true zero point. This implies that any scale that has a true
zero point should have the cardinal property of an interval scale;
