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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A: It is an important part of statistics. It is widely used.

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A: Given that  Sample size n =25 Standard deviation s=25 Sample mean=3490

Q: None

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

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A: It is given that  are i.i.d. exponential random variables with pdf given as:

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A: