The following correlation matrix is given by allison and, Ask an Expert

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The following correlation matrix is given by Allison and Ciechetti (1976) in a study of sleep in mammals:

where the random variables are defined as

Y₁ = Stow-wave sleep

Y₂ = Paradoxical sleep

Y₃ = Life span

Y₄= Body weight

Y₅ = Brain weight

Y₆= Gestation time

Y₇= Predation index

Y₈= Sleep exposure

Y₉= Overall danger

Carry out a cluster analysis of the variables by means of (a) the varimax rotation Eq. (5.20) and (b) the oblimin in criterion (Eq. 5.28) by using the first r = 2 principal components. Which rotation results in a clearer identification of the component axes?

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Category:- Statistics and Probability
Reference No.:- M91784290

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