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Unformatted text preview: F or R IG H T NOW: non-parametr ic means ranks.
Concepts are similar but there are things to take advantage of, new questions
to ask, ad some new things to worry about.
Analysis of Variance: ANOVA:
D ifferences in Means.
T wo Sample T-test / ANOVA.
Analysis of Means relative to Variances. C ase study 5.1
Mice not randomly selected
6 t reatment groups
(2 groups can’t fully answer the research question)
Box plots are very useful
Case 5.2 Spock T rial General Approach
• Graphical Exploration of data (often with side-by-side boxplots)
• Identification and examination of outliers
• Consideration of t ransformations
• Application of appropriate inferential techniques ...
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- Winter '08