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. (1) The random sample X, . . . , X5 can be modeled as iid N(μ = 0, σ2-22). a) What is the distribution for the random variable W = (Xi +X2)/Xi-X2? Completely specify this distribution (ie., give the corresponding parameter values), and justify your Isn b) Determine a constant c such that the random variable has a t dlistributin. Whai. is the d of fedon for the t disirilntio?

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