7.37 Let Y1, Y2, .. ,Y5 be a random sample of size 5 from a normal population with mean 0 and variance 1 and let
7.37 Let Y1, Y2, .. ,Y5 be a random sample of size 5 from a normal population with mean 0 and variance 1 and let 1' = (1/5) 2.54 1", Lot Y5 be anothor independent observation from the same population. What IS the distribution of (1point) a W: 3:! Y}?Why? (1 point) I) U = 2;: (Y; ?)3?W'hy? (2 pointS) c 23:1 (x. _ ?)2 + 1'62? Why
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