Question: Suppose x has a distribution with = 21 and = 20 . (a) If a random sample of size n =40is drawn, find x ,

Supposexhas a distribution with=21and=20.

(a) If a random sample of sizen=40is drawn, findx,xandP(21x23). (Roundxto two decimal places and the probability to four decimal places.)

x=

x=P(21x23) =

(b) If a random sample of sizen=61is drawn, findx,xandP(21x23). (Roundxto two decimal places and the probability to four decimal places.)

x=

x=

P(21x23) =

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