Created mBy:mAmSolutio
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Solutions Manual for An Introduction to Statistical Concepts, 4th Ed
m m m m m m m m m
ition by Debbie Hahs-
m m m
Vaughn, Richard Lomax (All Chapters Answers at the end of each
m m m m m m m m m m m
Chapter) A+ m
PROBLEMS
ConceptualmProblems
1. A mmentalmhealthmcounselormismconductingmamresearchmstudymonmsatisfactionmthat mmarried m
couplesmhavemwithmtheirmmarriage.m“Maritalmstatus”m(e.g.,msingle,mmarried,mdivorced,mwidowed),m
inmthismscenario,mismwhichmonemof mthemfollowing?
a. Constant
b. Variable
2. Bellemrandomlymsamplesm100mlibrarympatrons mand mgathersmdatamonmthemgenremof mthem"first
book"mthat mtheymchecked mout mfrommthemlibrary.mShemfindsmthat m85mlibrarympatronsmchecked mout m
m
amfictionmbookmand m15mlibrarympatronsmchecked mout mamnon-
fictionmbook.mWhichmof mthemfollowingmbest mcharacterizesmthemtypemof m"first mbook"mchecked mout mi
nmthismstudy?
a. Constant
b. Variable
3. Formintervalmlevelmvariables,mwhichmof mthemfollowingmpropertiesmdoesmnot mapply?
1
,Created mBy:mAmSolutio
n
a. "A"mismtwomunitsmgreatermthanm„B‟
b. "A"mismgreatermthanm„B‟
2
,Created mBy:mAmSolutio
n
c. "A"mismtwicemasmgood masm„B‟
d. "A"mdiffersmfromm„B‟
4. Whichmof mthemfollowingmpropertiesmismappropriatemformordinal,mbut mnot mformnomin
almvariables?
a. "A"mdiffersmfromm„B‟
b. "A"mismgreatermthanm„B‟
c. "A"mismtenmunitsmgreatermthanm„B‟
d. "A"mismtwicemasmgood masm„B‟
5. Whichmscalemof mmeasurement mismimplied mbymthemfollowingmstatement:m“JoAnn‟smscore
ismthreemtimesmgreatermthanmOscar‟smscore?”
m
a. Nominal
6. Whichmscalemof mmeasurement mismproduced mthemfollowingmsurveymitem:m"Whichmseasonm
domyoumprefermtomspend myourmtime?mSpring,mSummer,mFall,mWinter?"
a. Nominal
b. Ordinal
c. Interval
d. Ratio
7. A mband mdirectormcollectsmdatamonmthemnumbermof myearsminmwhichmstudentsminmthemband mh
avemplayed mammusicalminstrument.mWhichmscalemof mmeasurement mism implied mbymthismscenario?
a. Nominal
3
, Created mBy:mAmSolutio
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b. Ordinal
c. Interval
d. Ratio
8. KristenmhasmanmIQmof m120.mI massert mthat mKristenmism20%mmoremintelligent mthanmthemaver
agempersonmhavingmanmIQmof m100.mAmmI mcorrect?
9. Populationmismtomparametermasmsamplemismtomstatistic.mTruemormfalse?
10. A mdichotomousmvariablemismalsomamcategoricalmvariable.m Truemormfalse?
11. Themamount mof mtimemspent mstudyingminmonemweekmformampopulationmof mstudentsmism
anminferentialmstatistic.mTruemormfalse?
12. A msamplemof m50mstudentsmtakemanmexammand mtheminstructormdecidesmtomgivemthemtopm5mscore
smambonusmof m5mpoints.mCompared mtomthemoriginalmset mof mscoresm(nombonus),mwillmthemranksmof mthem
new mset mof mscoresm(includingmbonus)mbemexactlymthemsame?
13. Malanimand mLailamhavemclassmranksmof m5mand m6.mIngrid mand mToomasmhavemclassmranksmof
55mand
m
56.mWillmthemGPAsmof mMalanimand mLailambemthemsamemdistancemapart masmthemGPAsmof mIngrid mand mT
oomas?
4
n
Solutions Manual for An Introduction to Statistical Concepts, 4th Ed
m m m m m m m m m
ition by Debbie Hahs-
m m m
Vaughn, Richard Lomax (All Chapters Answers at the end of each
m m m m m m m m m m m
Chapter) A+ m
PROBLEMS
ConceptualmProblems
1. A mmentalmhealthmcounselormismconductingmamresearchmstudymonmsatisfactionmthat mmarried m
couplesmhavemwithmtheirmmarriage.m“Maritalmstatus”m(e.g.,msingle,mmarried,mdivorced,mwidowed),m
inmthismscenario,mismwhichmonemof mthemfollowing?
a. Constant
b. Variable
2. Bellemrandomlymsamplesm100mlibrarympatrons mand mgathersmdatamonmthemgenremof mthem"first
book"mthat mtheymchecked mout mfrommthemlibrary.mShemfindsmthat m85mlibrarympatronsmchecked mout m
m
amfictionmbookmand m15mlibrarympatronsmchecked mout mamnon-
fictionmbook.mWhichmof mthemfollowingmbest mcharacterizesmthemtypemof m"first mbook"mchecked mout mi
nmthismstudy?
a. Constant
b. Variable
3. Formintervalmlevelmvariables,mwhichmof mthemfollowingmpropertiesmdoesmnot mapply?
1
,Created mBy:mAmSolutio
n
a. "A"mismtwomunitsmgreatermthanm„B‟
b. "A"mismgreatermthanm„B‟
2
,Created mBy:mAmSolutio
n
c. "A"mismtwicemasmgood masm„B‟
d. "A"mdiffersmfromm„B‟
4. Whichmof mthemfollowingmpropertiesmismappropriatemformordinal,mbut mnot mformnomin
almvariables?
a. "A"mdiffersmfromm„B‟
b. "A"mismgreatermthanm„B‟
c. "A"mismtenmunitsmgreatermthanm„B‟
d. "A"mismtwicemasmgood masm„B‟
5. Whichmscalemof mmeasurement mismimplied mbymthemfollowingmstatement:m“JoAnn‟smscore
ismthreemtimesmgreatermthanmOscar‟smscore?”
m
a. Nominal
6. Whichmscalemof mmeasurement mismproduced mthemfollowingmsurveymitem:m"Whichmseasonm
domyoumprefermtomspend myourmtime?mSpring,mSummer,mFall,mWinter?"
a. Nominal
b. Ordinal
c. Interval
d. Ratio
7. A mband mdirectormcollectsmdatamonmthemnumbermof myearsminmwhichmstudentsminmthemband mh
avemplayed mammusicalminstrument.mWhichmscalemof mmeasurement mism implied mbymthismscenario?
a. Nominal
3
, Created mBy:mAmSolutio
n
b. Ordinal
c. Interval
d. Ratio
8. KristenmhasmanmIQmof m120.mI massert mthat mKristenmism20%mmoremintelligent mthanmthemaver
agempersonmhavingmanmIQmof m100.mAmmI mcorrect?
9. Populationmismtomparametermasmsamplemismtomstatistic.mTruemormfalse?
10. A mdichotomousmvariablemismalsomamcategoricalmvariable.m Truemormfalse?
11. Themamount mof mtimemspent mstudyingminmonemweekmformampopulationmof mstudentsmism
anminferentialmstatistic.mTruemormfalse?
12. A msamplemof m50mstudentsmtakemanmexammand mtheminstructormdecidesmtomgivemthemtopm5mscore
smambonusmof m5mpoints.mCompared mtomthemoriginalmset mof mscoresm(nombonus),mwillmthemranksmof mthem
new mset mof mscoresm(includingmbonus)mbemexactlymthemsame?
13. Malanimand mLailamhavemclassmranksmof m5mand m6.mIngrid mand mToomasmhavemclassmranksmof
55mand
m
56.mWillmthemGPAsmof mMalanimand mLailambemthemsamemdistancemapart masmthemGPAsmof mIngrid mand mT
oomas?
4
