Descriptive Statistics - Quartiles - Example

Data

Example Data Set (°)

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Output

+-------------------------------------+
¦ QUAUND : QUARTILES - UNGROUPED DATA ¦
+-------------------------------------+

Method #      Quartile 1       Quartile 2       Quartile 3

Method 1 :     15.500000        23.000000        25.500000
Int 1 :      1                3                4
Frac 1 :       .500000          .000000          .500000

Method 2 :     18.250000        23.500000        32.750000
Int 2 :      1                3                5
Frac 2 :       .750000          .500000          .250000

Method 3 :     21.000000        23.000000        27.000000
Int 3 :      1                3                4
Frac 3 :       .500000          .000000          .500000

Method 4 :     21.000000        23.500000        27.000000
Int 4 :      1                3                4
Frac 4 :       .500000          .000000          .500000

Method 5 :     21.500000        23.500000        26.250000
Int 5 :      1                2                3
Frac 5 :       .250000          .500000          .750000

Method 6 :     21.000000        23.000000        27.000000
Int 6 :      2                3                5
Frac 6 :       .000000          .500000          .000000

Method 7 :     12.750000        23.500000        44.250000
Int 7 :      1                3                5
Frac 7 :       .750000          .500000          .250000

Method 8 :     21.000000        23.500000        27.000000
Int 8 :      1                3                5
Frac 8 :       .750000          .500000          .250000

(°)

References

Levine, D.M., Berenson, M.L. and Stephan, D.

Statistics for Managers - Using Microsoft Excel

Prentice-Hall, London, International Edition, 1998, pp. 127-128.

Statistica for Windows

StatSoft, Tulsa, 1998, Vol. I, pp. 1826-1828.

Software : 1999 Edition, Kernel Release 5.5 A.

Statistics Graphics Toolkit

TrueBasic, West Lebanon, Version 1.0, 1990.

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