In Version 7, the Moments table has been reorganized. Tables for Basic Statistical Measures, Tests for Location, and Tests for Normality have been added.
In Release 6.12 and earlier releases, the capability index k was also included in this table; this index is now provided in the table labeled Specialized Capability Indices, which you can request with the SPECIALINDICES option.
In Release 6.12 and earlier releases, observations were used in the analysis if and only if the WEIGHT variable value was greater than zero.
In Release 6.12 and earlier releases, weighted skewness and kurtosis were not computed.
In Release 6.12 and earlier releases, the weights did not affect the computation of percentiles.
In Release 6.12 and earlier release, the level for confidence limits for capability indices was specified with the GAMMA= option in the SPEC statement. This option still works but is considered obsolete.
In Release 6.12 and earlier releases, this value was specified with the ALPHA= option in the SPEC statement. This option still works but is considered obsolete.
See Chapter 7, "OUTPUT Statement"
In Release 6.12 and earlier releases, the CAPABILITY procedure performed a Shapiro-Wilk test for sample sizes of 2000 or smaller, and a Kolmogorov-Smirnov test otherwise. The computed value of W was used to interpolate linearly within the range of simulated critical values given in Shapiro and Wilk (1965). In Version 7, minor improvements have been made to the algorithm for the Shapiro-Wilk test, as described in this section.
Statistically, s is a more efficient estimator of
than sR.In Release 6.12 and earlier releases, the observation was included in the analysis, and the missing WEIGHT variable value was taken to be zero.
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