Skewness-Kurtosis test for normality
------------------------------------


		^sktestd^ varlist [^=^exp] [^if^ exp] [^in^ range]


For each variable in varlist, ^sktestd^ presents a test for normality based on
skewness and another based on kurtosis and then combines the two tests for an
overall test statistic.  ^=^exp, if specified, specifies the weight.

Note:  This is a variation on ^sktest^ as described in STB-sg5.  The test per-
       formed here is as reported in:

           "A Suggestion for Using Powerful and Informative Tests of Normality"
            by R. B. D'Agostino, A. Belanger, and R. B. D'Agostino, Jr.,
            _American Statistician_, vol. 44 no. 4, pp. 316-321.

This command was written by and is supported by CRC.


Example follows.

Example
-------

	. ^sktest weight mpg^

	                Skewness/Kurtosis tests for Normality
	                                              ------- joint -------
	 Variable |  Pr(Skewness)   Pr(Kurtosis)      Chi-sq(2)  Pr(Chi-sq)
	----------+--------------------------------------------------------
	   weight |      0.575         0.018            5.92       0.052
	      mpg |      0.001         0.073           14.64       0.001