Question

y that will beoh 0.5 away hom ta population n a) 0.7312 0.213 904188 0.0443 e04375 Question 14 Lion s esea cow an ac aes cereal a 1 ocu d taxes 16 ou ces ]. A sample of 1 á o es s s pocnd, what is the probability that the amcu dispeused perb mill hze to be increzed? edected at szudo e ren the oductio we even ha L Md the average re Ét s eas tu 1 IS cunsea te nac u e as ad a ted to crea e the an out of cereal dispensed f ea for L or a 1 ou d and t e standard der an on is 0.1 e a) 0.062 e) 02660 d) 00062 e) 0.0124

Answer 1

13)

std error of mean =9/sqrt(25)=1.8

hence Probability=1-P(-.5/1.8<Z <0.5/1.8)=1-P(-0.2778<Z<0.2778)=0.7812

14)

P(Xbar<15/16)=P(Z<(15/16-1)*sqrt(16)/0.1)=P(Z<-2.5)=0.0062