Solutions Manual For An Introduction to Statistical Concepts 4th Edition By Debbie Hahs-Vaughn, Richard Lomax (All Chapters)

Solutions Manual for An Introduction to Statistical
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Concepts, 4e Debbie Hahs-
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Vaughn, Richard Lomax(All Chapters Answers at t
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he end of each Chapter)
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PROBLEMS

ConceptualHProblems

1. AHmentalHhealthHcounselorHisHconductingHaHresearchHstudyHonHsatisfactionHthatHmarri
edHcouplesHhaveHwithHtheirHmarriage.H“MaritalHstatus”H(e.g.,Hsingle,Hmarried,Hdivorce
d,Hwidowed),HinHthisHscenario,HisHwhichHoneHofHtheHfollowing?
a. Constant
b. Variable

2. BelleHrandomlyHsamplesH100HlibraryHpatronsHandHgathersHdataHonHtheHgenreHofHtheH"firstHboo
k"HthatHtheyHcheckedHoutHfromHtheHlibrary.HSheHfindsHthatH85HlibraryHpatronsHcheckedHoutHaHfi
ctionHbookHandH15HlibraryHpatronsHcheckedHoutHaHnon-
fictionHbook.HWhichHofHtheHfollowingHbestHcharacterizesHtheHtypeHofH"firstHbook"HcheckedHou
tHinHthisHstudy?
a. Constant
b. Variable

3. ForHintervalHlevelHvariables,HwhichHofHtheHfollowingHpropertiesHdoesHnotHapply?
a. "A"HisHtwoHunitsHgreaterHthanH‘B’
b. "A"HisHgreaterHthanH‘B’
c. "A"HisHtwiceHasHgoodHasH‘B’
d. "A"HdiffersHfromH‘B’

4. WhichHofHtheHfollowingHpropertiesHisHappropriateHforHordinal,HbutHnotHforHnominalHvariables?
a. "A"HdiffersHfromH‘B’
b. "A"HisHgreaterHthanH‘B’
c. "A"HisHtenHunitsHgreaterHthanH‘B’
d. "A"HisHtwiceHasHgoodHasH‘B’

5. WhichHscaleHofHmeasurementHisHimpliedHbyHtheHfollowingHstatement:H“JoAnn’sHscoreHisHthr
eeHtimesHgreaterHthanHOscar’sHscore?”
a. Nominal
b. Ordinal
c. Interval
d. Ratio

,6. WhichHscaleHofHmeasurementHisHproducedHtheHfollowingHsurveyHitem:H"WhichHseasonHdoHy
ouHpreferHtoHspendHyourHtime?HSpring,HSummer,HFall,HWinter?"
a. Nominal
b. Ordinal
c. Interval
d. Ratio

7. AHbandHdirectorHcollectsHdataHonHtheHnumberHofHyearsHinHwhichHstudentsHinHtheHbandHha
veHplayedHaHmusicalHinstrument.H WhichHscaleHofHmeasurementHisHimpliedHbyHthisHscena
rio?
a. Nominal
b. Ordinal
c. Interval
d. Ratio

8. KristenHhasHanHIQHofH120.HIHassertHthatHKristenHisH20%HmoreHintelligentHthanHtheHavera
geHpersonHhavingHanHIQHofH100.HHAmHIHcorrect?

9. PopulationHisHtoHparameterHasHsampleHisHtoHstatistic.HTrueHorHfalse?

10. AHdichotomousHvariableHisHalsoHaHcategoricalHvariable.HTrueHorHfalse?

11. TheHamountHofHtimeHspentHstudyingHinHoneHweekHforHaHpopulationHofHstudentsHisHanHinferent
ialHstatistic.HTrueHorHfalse?

12. AHsampleHofH50HstudentsHtakeHanHexamHandHtheHinstructorHdecidesHtoHgiveHtheHtopH5Hscore
sHaHbonusHofH5Hpoints.HComparedHtoHtheHoriginalHsetHofHscoresH(noHbonus),HwillHtheHranksH
ofHtheHnewHsetHofHscoresH(includingHbonus)HbeHexactlyHtheHsame?

13. MalaniHandHLailaHhaveHclassHranksHofH5HandH6.HIngridHandHToomasHhaveHclassHranksHofH55Hand
56.HWillHtheHGPAsHofHMalaniHandHLailaHbeHtheHsameHdistanceHapartHasHtheHGPAsHofHIngridHa
ndHToomas?

14. AuroraHisHstudyingHsleepHdisordersHinHadults.HSheHgathersHdataHonHwhetherHorHnotHtheyHtake
HmedicationHtoHassistHtheirHsleep.HAuroraHfindsHthatH1/3HofHtheHadultsHtakeHmedication, HandH

2/3HdoHnot.HWhichHofHtheHfollowingHbestHcharacterizesH"whetherHorHnotHmedicationHisHtaken
?"
a. Constant
b. Variable

15. AHresearcherHhasHcollectedHdataHthatHcomparesHanHinterventionHprogramHtoHaHcomparisonH
program.H TheHresearcherHfindsHthatHtheHinterventionHprogramHproducesHresultsHthatHareHfo
urHtimesHbetterHthanHtheHcomparisonHprogram.HWhichHmeasurementHscaleHisHimpliedHandHt
hatHwillHallowHtheHresearcherHtoHmakeHthisHtypeHofHinterpretation?H SelectHallHthatHapply.
a. Nominal
b. Ordinal
c. Interval
d. Ratio

,16. AHresearcherHhasHaccessHtoH22HlocalHhealthHclinicsHwhichHareHpartHofHaHnetworkHofH56Hhea
lthHclinicsHinHtheHstate.HTheHresearcherHconductsHaHstudyHwhichHincludesHtheH22HregionalHh
ealthHclinics.H InHthisHscenario,HtheH22HlocalHhealthHclinicsHareHwhichHoneHofHtheHfollowing
?
a. Dichotomous
b. Interval
c. Sample
d. Population

17. AHresearcherHhasHaccessHtoH22HregionalHhealthHclinicsHwhichHareHpartHofHaHnetworkHofH56H
healthHclinicsHinHtheHstate.HTheHresearcherHconductsHaHstudyHwhichHincludesHtheH22Hregion
alHhealthHclinics.HInHthisHscenario,HtheH56HhealthHclinicsHinHtheHstateHareHwhichHoneHofHtheHf
ollowing?
a. Dichotomous
b. Interval
c. Sample
d. Population

18. WhichHofHtheHfollowingHisHanHexampleHofHaHdichotomousHvariable?
a. DanceHtypeH(ballet,Hcontemporary,Hjazz,Hlyrical,Htap)
b. InterestH(noHinterest,HsomewhatHinterested,HmuchHinterest)
c. TotalHcostH(measuredHinHwholeHdollarsHrangingHfromH$0HtoHinfinity)
d. AgeH(agesH<40HandHagesH40+)

19. WhichHofHtheHfollowingHisHanHexampleHofHanHordinalHvariable?
a. DanceHtypeH(ballet,Hcontemporary,Hjazz,Hlyrical,Htap)
b. InterestH(noHinterest,HsomewhatHinterested,HmuchHinterest)
c. TotalHcostH(measuredHinHwholeHdollarsHrangingHfromH$0HtoHinfinity)
d. AgeH(agesH<40HandHagesH40+)

20. WhichHofHtheHfollowingHisHanHexampleHofHaHratioHvariable?
a. ScoresHonHtheHMyers-BriggsHTypeHIndicatorH(MBTI)HpersonalityHinventory
b. NumberHofHpiecesHofHcakeHeatenHatHbirthdayHpartiesH(measuredHinHwholeHnumbers)
c. PleasureHexperiencedHonHvacationH(none,Hsome,Hmuch)
d. TypesHofHplantsHpreferredHbyHhomeownersH(bushes,Hflowers,Hgrasses,Htrees)

, AnswersHtoHConceptualHProblems

1. ConstantH(allHindividualsHinHtheHstudyHareHmarried,HthusHtheHmaritalHstatusHwillHbeH"married"Hf
orHeveryoneHparticipating;HinHotherHwords,HthereHisHnoHvariationHinH"maritalHstatus"HforHthisHpa
rticularHscenario)

2. VariableH(whileHthereHisHnotHaHlotHofHvariationHgivenHthatH85HofH100HpatronsHcheckHoutHficti
onHbooks,HthereHisHsomeHvariationHinHthisHscenario)

3. cH(trueHratiosHcannotHbeHformedHwithHintervalHvariables)

4. bH(greaterHthanHstatementsHdoHnotHapplyHtoHnominalHvariables)

5. dH(trueHratiosHcanHonlyHbeHformedHwithHratioHvariables)

6. aH("season",HasHinHspring,Hsummer,Hwinter,Hfall,HisHaHnominalHvariable)

7. dH(anHabsoluteHvalueHofHzeroHwouldHindicateHanHabsenceHofHwhatHwasHmeasured—
i.e.,HtheHnumberHofHyearsHplayingHinHaHband—
andHthusHratioHisHtheHscaleHofHmeasure;HalthoughHanHanswerHofHzeroHisHnotHlikelyHgivenHthat
HtheHstudentsHinHtheHband HareHthoseHbeingHmeasured,HifH
someoneHwereHtoHrespondHwithHanHa
nswerHofHzero,HthatHvalueHwouldHtrulyHindicateH"noHyearsHplayingHanHinstrument")

8. NoH(trueHratiosHcannotHbeHformedHwithHintervalHvariables)

9. TrueH(thereHareHonlyHpopulationHparametersHandHsampleHstatistics;HnoHotherHcombinatio
nsHexist)

10. TrueH(categoricalHvariablesHcanHhaveHanyHnumberHofHqualitativeHvalues;HdichotomousHvariabl
esHareHlimitedHtoHonlyHtwoHvalues)

11. FalseH(asHthisHisHaHpopulationHparameter,HnoHinferenceHneedHbeHmade)

12. YesH(althoughHtheHtopH5HscoresHwillHbeHincreased,HtheHranksHofHeveryHscoreHwillHremainHt
heHsame)

13. NoH(classHrankHisHordinalHandHequalHintervalsHisHnotHaHcharacteristicHofHanHordinalHvariable)

14. VariableH(givenHthatHsomeHtookHmedicationHandHothersHdidHnot,HthisHindicatesHvariationHinHwh
atHwasHmeasured)

15. dH(ratioHvariablesHwillHallowHinterpretationsHsuchHasH"fourHtimesHgreater"HtoHbeHmadeHfromHt
heHdataHasHtheyHhaveHequalHintervalsHandHaHtrueHzeroHpoint)

16. cH(withHaccessHtoH22HofHtheH56HtotalHhealthHclinics,HtheHresearcherHisHworkingHwithHaHsample
HofH
22HfromHtheHpopulationHofH56)