7.6 Let X1,...,X, be a random sample from the pdf f(z|@) = @z¯², 0<0sz<0. (a) What is a sufficient statistic for 0? (b) Find the MLE of 0. (c) Find the method of moments estimator of 0.

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Q: then the value of variance of X is

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A: Step 1:Step 2:Step 3:Step 4:Option(E) : correct

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Q: (a) Is X a complete sufficient statistic?

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A: The likelihood and log likelihood functions are as follows:

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