Homework_11_Answer_Key

Homework_11_Answer_Key - -Spring 3009 Homedork\IAnswer Key...

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*-. . - .-- Spring 3009 Homedork \I Answer Key . . . . ~ . . ~ - -- . . - ~ ~ OOH,:pko.a7 HA:p&0.a7 ~ . . -. . - . - . @ oc- o.o\ .~~ @ Winirnum eondiCions.: np, = (785) (0.27) = a11.4$5. . - . .. . . .- dl-pol = [785)(0.73') = 573.052 5 is. z"" =-r . . . .~ . .- . . . . w - - ~ ~ ~ . ~ a.33 0 z,= z0.0, ' . ~ Reject % i5 zmlc L -2.33 call @z,~,= o.1s3-o.a7 =-~qq w H, at H= 0.01. I 191 b&r educated people may be more likely 4-0 appreciate the Idisadvantages 0% smoking. - - - . - - t - -- - - - CI1 @ The rate 05 smoking among those with four years of - col\ege is less lhan +he a7% rate for the geneml . popu\ation.
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.-- . -- . C33 IC.) You ~odd requesj information about other [non-statistical) -- -- ifadors tho+ c&ld aSfect She da+a such as Sype 05 job - - -. - - - I I ( Sd\-time i par+-She, inddry s&c l, duration oS (nurnbec I -- - .of weeks worked, nurnbec hours per week), etc. [l.fl13) @ No: p 6 0.50 HR: p > Co.O/ Qoc=O.OS ! : 0 Hinimum conditions: np,= L137)LO.S)- 68.52 5 1 I I nll-po\= 1137)L0.5)= 68.52 5 co 1 rr. ,,, = J-P; I * - I I t ClJi 8 0.6Ya3 I 1 37 C8, zeale= 0.6~3-0.5 = 3.33 I 1 i C13 1 iF Reject a+ a=O.OS 1 ~17 1 We can eonelude +ha+ more -than 50% o$ the s4udcnCs are liberal.
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I /samp\ing error = tdla . .. La WiAh 0.95 probabi\ity. +he sampling is \ess 4han or egual -to 12.
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This note was uploaded on 08/25/2010 for the course AEM 2100 taught by Professor Vanes,c. during the Spring '08 term at Cornell.

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Homework_11_Answer_Key - -Spring 3009 Homedork\IAnswer Key...

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