Rule 3 - Number of Runs
Runs are a series of data points that fall
either above or below the median.
Are there too many or too few runs?
Disregard the points exactly on the
line. Tabled critical values are used to
determine if too many or too few runs
Note at least 10 data points are required
to use this rule.
Rule 4 - Astronomical point
A dramatically different value that
everyone reviewing the chart would agree
was extraordinary. This rule often applies
when improvement work has just begun
and the knowledge of what activity should
be undertaken is suddenly understood
and applied. It can lead to an instant