ࡱ> 02/ bjbj cc'8 $\.,t-!%.r[T/LqS,0\ Q:   Economics 103A Dr. Tom Means Exam #3 Fall 2001 Name Instructions. Do all of the problems in numerical order. Show all of your work. Partial credit awarded where possible. 1. The data below reveals the breakdown by game of the 49'ers first 20 plays between passes and runs. The offensive coordinator says that he tries to balance the pass-run ratio (i.e. an equal number of passes and runs). Opponent Pass - Run Rams - I 8 - 12 New Orleans 14 - 6 Carolina - I 12 - 8 Bears 9 - 11 Atlanta 11 - 9 Rams - II 14 - 6 Buffalo 8 - 12 Miami 10-10 (5) a. Using a c2 test at the 5% level, test whether the distribution of plays for these 8 games is purely random? (Hint. The expected number of passes is equal to 10 for each game and use d.f. = 8) (10) b. For the first Rams game the sample proportion of passes equals 8/20 and for the second game it equals to 14/20. Test the hypothesis that the 49'ers passed less the first game? Set the Type I error equal to 5% and perform a one tail test. 2. Two groups were selected for an experiment. The sample data is reported below. Group A Group B Mean Height (inches) 55.00 55.75 Standard deviation (inches) 0.40 0.60 Sample Size 8 16 a. Set up a 90% confidence interval for the population variance for group B? b. Test at the 5% level the hypothesis that the population variance from Group B is larger than Group A? (Hint: use a one tail test) (10) c. At the 5% level does group A have a lower mean height than Group B? Data TABLE 1 Observation 1 2 3 4 Xt -4 -2 2 4 Yt 1 3 6 10 3. From Table 1 calculate the following: (5) a. The sample regression function (SRF): Yi = b0 + b1Xi. 4. Recent polls suggest that George Bush will beat Al Gore or Bill Bradley in a rematch because he is a compassionate conservative. The table below reports the breakdown of a sample of 300 people by candidate and compassion status. Bush Gore Bradley Other Compassionate people 55 30 10 5 Other people 90 80 20 10 (10)a. At the 1% level does the above data support the hypothesis that compassion status and choice of Presidential candidate are unrelated? Economics 103A Page  PAGE 2 of 2 CG^   ` p  $&23>@zh[0JmHnHu hF0JjhF0JUhFOJQJhFOJQJo(hFCJEHOJQJhFhF5>*OJQJhFCJEHOJQJhFCJ$OJQJhF5CJOJQJhF>*OJQJhF5>*CJOJQJhFOJQJ.&CPQ ( J h / p@ $d %d &d 'd N O P Q ]p^@ p@ ]p^@ 0^`0 l^l`$a$   Z q $  "L 5$ @ xHP X $d %d &d 'd (dN O P Q R^ & F h0^`0 & F  0^`0"0=>g @  pl^l` 0^`0L 5t @ xHP X $d %d &d 'd (dN O P Q R^ @ $P/ =!"#$% |HH(FG(HH(d'`666666666vvvvvvvvv666666>6666666666666666666666666666666666666666666666666hH6666666666666666666666666666666666666666666666666666666666666666666666666662 0@P`p2( 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p 0@P`p8XV~OJQJ_HmH nH sH tH D`D NormalCJOJQJ_HmH sH tH @@@  Heading 1$@& 5OJQJDA`D Default Paragraph FontZiZ  Table Normal :V 4 l4a _H(k (No List 88 My Style CJOJQJ44 Header  !4 @4 Footer  !.)@!. Page NumberPK![Content_Types].xmlj0 u$Nwc$ans@8JbVKS(.Y$8MVgLYS]"(U֎_o[gv; f>KH|;\XV!]օ Oȥsh]Hg3߶PK!֧6 _rels/.relsj0 }Q%v/C/}(h"O = C?hv=Ʌ%[xp{۵_Pѣ<1H0ORBdJE4b$q_6LR7`0̞O,En7Lib/SeеPK!kytheme/theme/themeManager.xml M @}w7c(EbˮCAǠҟ7՛K Y, e.|,H,lxɴIsQ}#Ր ֵ+!,^$j=GW)E+& 8PK!\theme/theme/theme1.xmlYOoE#F{o'NDuر i-q;N3' G$$DAč*iEP~wq4;{o?g^;N:$BR64Mvsi-@R4Œ mUb V*XX! cyg$w.Q "@oWL8*Bycjđ0蠦r,[LC9VbX*x_yuoBL͐u_. DKfN1엓:+ۥ~`jn[Zp֖zg,tV@bW/Oټl6Ws[R?S֒7 _כ[֪7 _w]ŌShN'^Bxk_[dC]zOլ\K=.:@MgdCf/o\ycB95B24S CEL|gO'sקo>W=n#p̰ZN|ӪV:8z1f؃k;ڇcp7#z8]Y / \{t\}}spķ=ʠoRVL3N(B<|ݥuK>P.EMLhɦM .co;əmr"*0#̡=6Kր0i1;$P0!YݩjbiXJB5IgAФ޲a6{P g֢)҉-Ìq8RmcWyXg/u]6Q_Ê5H Z2PU]Ǽ"GGFbCSOD%,p 6ޚwq̲R_gJS֣9)嗛(:/ak;6j11太x~<:ɮ>O&kNa4dht\?J&l O٠NRpwhpse)tp)af] 27n}mk]\S,+a2g^Az )˙>E G鿰L7)'PK! ѐ'theme/theme/_rels/themeManager.xml.relsM 0wooӺ&݈Э5 6?$Q ,.aic21h:qm@RN;d`o7gK(M&$R(.1r'JЊT8V"AȻHu}|$b{P8g/]QAsم(#L[PK-![Content_Types].xmlPK-!֧6 /_rels/.relsPK-!kytheme/theme/themeManager.xmlPK-!\theme/theme/theme1.xmlPK-! ѐ' theme/theme/_rels/themeManager.xml.relsPK] &&&&)  " )!&9=CAEFI ::::: 0^`0o(()0^`0o(()hh^h`o(()hh^h`o(()@(p@p p@UnknownGTimes New Roman5Symbol3 Arial3TimessMNew Century SchlbkCentury SchoolbookYM New YorkTimes New Roman;Helvetica9Palatino"@B&B&#y:$;df;?F0 Exam #3 S'97KATHRYN S. MEANS Tom Means     Oh+'0  < H T `lt|'Exam #3 S'97KATHRYN S. MEANS Normal.dotm Tom Means2Microsoft Macintosh Word@@k}@p@p: ՜.+,0 hp|  '  Exam #3 S'97 Title  !"#$%&()*+,-.1Root Entry FAMq31TableWordDocumentSummaryInformation(DocumentSummaryInformation8'CompObj`ObjectPoolMqMq F Microsoft Word 97-2004 DocumentNB6WWord.Document.8