STATISTICA 6.0 (, ) (, , , ..).
, (. 1).
:
1. Statistics Basic Statistics/Tables ( ).
2. Basic Statistics and Tables Descriptive statistics ( ).
3. Descriptive statistics Advanced (). ( 3.1):
1) Location, valid N ( ) : Valid N ( N), Mean (), Sum (), Median (), Mode (), Geom. Mean ( ), Harm. Mean ( ).
2) Variation, moments (, ) : Standard Deviation ( ), Variance (), Std. err. of mean ( ), Conf. limits for means ( ), Skewness (), Std. err., Skewness ( ), Kurtosis (), Std. err., Kurtosis ( );
3) Percentiles, ranges (, ) Minimum & Maximum ( ), Lower & upper quartiles ( ), Percentile boundaries (), Range (), Quartile range ( ).
4. ( 3.1): Valid N ( N), Mean ( ), Standard Deviation ( ), Skewness (), Kurtosis (), Minimum & Maximum ( ).
Summary () :
3.1 -
| Valid N | Mean | Minimum | Maximum | Std.Dev. | Skewness | Kurtosis | |
| Y | 37,667 | 11,684 | 0,266 | -1,588 | |||
| X1 | 32,400 | 13,809 | 0,225 | 0,675 | |||
| X2 | 47,533 | 6,621 | -0,442 | -1,125 |
3.1 () ( )
, , (Skewness) . , . , .
. , Y, 1 2 .
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|
|
(Kurtosis) , . , . Y 2 , X1 .
, Normality () Descriptive statistics ( 3.2).
:
Kolmogorov-Smirnov & Lillifors test for normality ( - ) , D - , , , . ,
Shapiro-Wilks W test (W -) , W - , , , .
, D - a ( a = 0,01, 0,05 0,1), (1 - a).
3.2 ( )
, 3.2, Frequency tables ( ). (Workbook) ( ), Y.
3.3 ( )
, - - Y .
