Question: 5.2 Consider a random sample Y1,...,YN with the exponential distribution f(yi ;i) = i exp(yii). Derive the deviance by comparing the maximal model with different

5.2 Consider a random sample Y1,...,YN with the exponential distribution f(yi

;θi) = θi exp(−yiθi).

Derive the deviance by comparing the maximal model with different values of θi for each Yi and the model with θi = θ for all i.

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