Suppose x has a distribution with u = 15 and o = 9. n USE SALT (a) If a random sample of sizen = 35 is drawn, find u, o, and P(15

Suppose
x
has a distribution with ? = 15 and ? = 9.

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Extracted text: Suppose x has a distribution with u = 15 and o = 9. n USE SALT (a) If a random sample of sizen = 35 is drawn, find u, o, and P(15 <>< 17).="" (round="" o,="" to="" two="" decimal="" places="" and="" the="" probability="" to="" four="" decimal="" places.)="" p(15=""><>< 17)="|" (b)="" if="" a="" random="" sample="" of="" sizen="61" is="" drawn,="" find="" u,,="" o="" ,="" and="" p(15=""><>< 17).="" (round="" o="" ,="" to="" two="" decimal="" places="" and="" the="" probability="" to="" four="" decimal="" places.)="" 阪="『ス=" p(15="">< xs="" 17)="(c)" why="" should="" you="" expect="" the="" probability="" of="" part="" (b)="" to="" be="" higher="" than="" that="" of="" part="" (a)?="" (hint:="" consider="" the="" standard="" deviations="" in="" parts="" (a)="" and="" (b).)="" the="" standard="" deviation="" of="" part="" (b)="" is="" --select--="" v="" part="" (a)="" because="" of="" the="" -select-="" v="" sample="" size.="" therefore,="" the="" distribution="" about="" u,="" is="" --select---="" the="" same="" as,="" smaller="" than,="" larger="" than="" larger,="" same,="" smaller="" narrower,="">