Let Xi iid∼ N(µx, σx2 ) for i = 1, ..., n and Yj iid∼ N(µy,...

Question

Question

Let Xi iid∼ N(µ_x, σ_x² ) for i = 1, ..., n and Yj iid∼ N(µ_y, σ_y²) for j = 1, ..., m with all X and Y independent.

(a) What is the distribution of Xbar?

(b) What is the distribution of Ybar?

(c) What is the distribution of Xbar − Ybar?

math Statistics-And-Probability

Answer 1

Answer #1

a) Given that X; NN (Mx, 5x). - XNN(Mx, of a Wher x = ħ axi ie; Xat is also follows normal with E(F) = Mx :v (F) = oxlu b Gir

Answer 2

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