5 Printfirst letterof your last name- CAPITAL (left LETTERS justify) OSUE-mailidentifier number(rightjustify)
) t t t
tttt
LastName(printed))ttt
First Name(printed)t t t t Busineosluanagement Exam#3 330
A*ru)n*
Kn
A countdown timerwill be projected the screenin the frontof the classroom on duringthe exam. . You have90 minutes complete exam. to this r No "timechecks'willbe verbally givenby the instructor duringthe exam. . Whenthe 90 minutes complete, writing cease. are all will . Any clarifications and/orcorrections examquestions of wilfbe postedbeneath countdown the clock. / Questions Answers . Please readeachquestion carefully directly and answer question is asked. the that . Placethe answer the question to askedin the boxprovided. . Points be deducted equations anything will for or otherthanthe answerin the box. . Points not be awarded answers Dlaced the box. will for not in o The rcquired number of decimal places for numeric answe6 ia in b,'a/cke'swithin the answer boxes, Calculators o Thereare no extrabatteries extracalculators lendto the students or to duringthe exam. . No instruction the useof the calculator its functions be givenduringthe exam. on or will . No sharing calculators permitted. of is The use of cell phones. PDAS.and iPods (HPg olaveB) durtno the exam are prchibited! No communication any kind(verbal, of non-verbal, written, electronic, etc.)is permitted duringthe courseof the exam. I have readthe exam instructionsaboveand undeBtand that any yiolation of the8eand other exam rules in the StudentCodeof Conductwill rsult in a suspectedcase of acadbmicmlsconduct.
Signature:
Date:
Do notwritebelow this line
Totalpoints quiz on Totalpoints missed
207
Percent correct
Curved score
1. [36 Poinfs - 3 Points for each box] Usingthe regression equation Y-hati= 3.30- 0.10 Xi completethe tables below (onlythe bold bordered boxesare graded).
x
3
5
Y
1 4
Y-bar
Y-hat
(Y - Y-bar)2
3
3 3
3,0 L,T 3,(
3,L
V.oo l,oo {.oo o, Do /,op f O,OD nr
(Y - Y-hat)2
2 1
4
5 3 2
3 3
L,1
Total
X 3
5
Y
1 4 5
Y-bar
Y-hat
3
3
3,o
V.Do
z.E
3,(
3,t
,,vv
3,b t
O , o*
2 1
4
3 3
3 2
3
L,1
Total
o,7 I
9,?o ftj
X 3 5 2
1 4
Y
1 4
Y-bar
Y-hat
(Y-hat - Y-bar)2
3
3,o L,T
o.oo
o,oY
o,o I
3
3
5 3 2
3,1
!,t
3 3
o,ov
O,oI
O,lO nl
zn
Total
Do not write below this line
2
2. [25 Poinfs- 1 for each box in top tableand 2 for each box in bottom tablel Giventhe following results froman experiment, calculate missing the information.
A 1 4 4
B
5 4 4
c
5 4 6
V}
tlaTa
rA
2 3
4
2 3
3
= 1(4 + *(v) + 3(s) = 3.83 IL
5 n; \-bar X-bar-bar
J
v)
2
tol
tOl
+rc,
+rcr
3rc.
Srcl
2
ss6 = , nUtRt_if
3,83 pl
l,(=) SSc_
ANOVA table
+ Q -3J' r k-.+). r Crr_ r lv_v\. *f -vl' + g - s)' * _s)., lt- r)t r Cs G
-
3. [14 Points- 2 points for each box] ln a completely randomized experimental design, nine observations madefor eachof the seven were groups. Complete the ANOVA tablebelow.
d,ou
Do not write below this line
3
4. [39 Poinfs-- 3 points for each box] Giventhe perform intermediate calculations below, the calculations needed determine to whether significant differences existsbetween population the means of thegroups.
Statistic
Group #1 5
5
Group#2
I 6
Group#3
7 4 1
Y
n X-bar
Variance(S2)
sr(sl * e[c\ * -] (v)
ZI
rr
= f,ro
3
2
a. State NullHypothesis: the
55.C1
Z nd(Id -i)'
f,(lS,,of , q (s -r,(o)Lo I Cv*S,,o)z
b. StatetheAlternative Hypothesis:
F)or Ar. AL,rAn" &,;r*
c. Completethe ANOVA table below.
lt,t t
5sa
2l^u- ,)s6'
((a)
+ -E ( z ) r s C , )
3.+
d) lf o = 0.05,what is Fsilhd?
4,ESS
e) "Reject"/"Do Not Reject"He?
Rel cr
Do not write belowthis line
4
5. [25 Poinfs/ Using following the ANOVA table, test thesignificance the model of witha = 0.05.
a. State nullandalternative the hypotheses.
Ho: Hn:
b.
t
-o
t+o L'31
What is the value of F6d1;sa1?
c. "Reject" "DoNotReject" nullhypothesis? / the
&'-J6*cT
d. ls the independent variable an effective X predictor the dependent for variable ("Yes" Y / "No")?
\/s s
Do not write belowthis line
5
7. [42 Points Total] a. [1 Pointper box] Complete following the table.
x
3
5
Y 2 3
5 4 1
xx
XY
YY
1rc. V ,0, * r '
7s rol lS ,0, ? r c j
* | ,0, ,0,
2
1 4
l o r o r 75 rc1 '( ro, lb pt
( ror
b,=
n:-Y\/ - 2 v t y
n a>y- :.x 2v
l b r o r * ror
{{,0,
?-QI':>@!e
>-O,(aO
Total Average
l9 ror 6ror 3 ror 3 r c r
31 ror -5Tror
b. [5 Points] Using least-squares the method, calculate slope. the
r-= S- b.i rJorl
: Y,?o
-I
-D,L
n
c. [5 Points] Usingthe least-squares method, calculate the intercept.
,t
d. [5 Points] Calculatethe coefficient of determination.
N 1-x\ - 1x ay
f-
0,36
e. [5 Points] Calculate coefficient the of correlation.
z*t4:nlxY r/6 LxKV_
sJ ) Cz95- (r) Ct
-rx lYl
-
O:GO
--
ltcEs)-o') (rs[ {sJ(r'l1 tl S(sr)
- O,Loo
f\,
'(rF
= (-o,go)L
_ o,3V
Do not write belowthis line
6
8. [40 Poinfs-- 10 points for each box] Matchthe fourANOVA parameters tables the population to of eachof the4 scenarios.
ANOVA Table "A"
Population for distributions eachscenario 1 2 Group Group Scenario 1
Fr=50 or=3 t\=20 Fr=50 or=5 t\=20 Fr=50 ot=5 t\=20 Pr=$g or=3 t\=20 Fz=50 oz=3 nz=20 Vz=45 oz=5 nz=20 Pz=50 C z =5 A z =2 0 V z =4 5 oz=3 tlz= 20
Group 3
Ps=50 oe=3 ng=20 Ps=50
og=5
4 Group
Fq=50 o+=3 nq=20
P4=55 o+=5 llq = 20
Scenario 2
hs=20 Fa=50 os=5 ns=20
Pg=50 og=3 ng=20
ANOVA Table"B" Scenario 3
= Fr+ 50 oa=5 nq=20 = Fr+ 55 o+=3 nq=20
4 Scenario ANOVA Table "C"
Match ANOVA the table(A, B, C, or D) to the correct (1 s c e n a r i o , 2 , 3 , r4 ) o
Scenario1
g
C A D
B, [A, c, orD]
[A,B,c, orD] [A,B,c, orD] [A,B,c, orDl
ANOVA Table"D"
Scenario 2 Scenario 3 Scenario 4
1818.07
Do not write belowthis line
7