Chapter 18
Non-Parametric Statistics
Do not put your faith in what statistics say until you have carefully considered what they do not say.
– William W. Watt
LEARNING OBJECTIVES
Upon completion of this chapter, you will be able to:
- Analyse nominal as well as ordinal level of data
- Learn relative advantages of non-parametric tests over parametric tests
- Understand when and how to use the runs test to test randomness
- Understand when and how to use the Mann–Whitney U test, the Wilcoxon matched-pairs signed rank test, the Kruskal–Wallis test, the Friedman test, and Spearman's rank correlation
STATISTICS IN ACTION: BAJAJ ELECTRICALS LTD
Bajaj Electricals Limited (BEL) is part of the Rs 200 billion Bajaj group, which is in the business of ...
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