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Homework help for intro to stats. Question 5.

Statistics
Tutor: None Selected Time limit: 0 Hours

Apr 26th, 2015

a) mean= .07

    standard deviation= sqrt(.07*.93/100)=.0255

b) No, because np<10

c) mean =.07

    standard deviation= sqrt(.07*.93/200)=.0180

d) Yes, because np >10

e) P(p>.09)= P(z> (.09-.07)/sqrt(.7*.93/200))= P(z>1.11)=1-P(z<1.11)=1-.8662=.1338

Apr 26th, 2015

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Apr 26th, 2015
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Apr 26th, 2015
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