Solutions Manual for Business Statistics 3rd Edition by Robert A. Donnelly Chapters 1-18 Covered

Solutions Manual
Business Statistics 3rd Edition
by Robert A. Donnelly Chapters 1-18 Covered

, Table of Contents
o o




Chaptero1:oAnoIntroductionotooBusinessoStatistics… ......................................................1-1
Chaptero2:oDisplayingoDescriptiveoStatistics… ..............................................................2-1
Chaptero3:oCalculatingoDescriptiveoStatistics…............................................................ 3-1
Chaptero4:oIntroductionotooProbabilities… ................................................................... 4-1
Chaptero5:oDiscreteoProbabilityoDistributions… ............................................................ 5-1
Chaptero6:oContinuousoProbabilityoDistributions… ....................................................... 6-1
Chaptero7:oSamplingoandoSamplingoDistributions… ...................................................... 7-1
Chaptero8:oConfidenceoIntervals… ...............................................................................8-1
Chaptero9:oHypothesisoTestingoforoaoSingleoPopulation… .............................................. 9-1
Chaptero10:oHypothesisoTestsoComparingoTwooPopulations… ...................................... 10-1
Chaptero11:oAnalysisoofoVarianceo(ANOVA)oProcedures… ............................................ 11-1
Chaptero12:oChi-SquareoTests… ................................................................................ 12-1
Chaptero13:oHypothesisoTestsoforotheoPopulationoVariance… ....................................... 13-1
Chaptero14:oCorrelationoandoSimpleoLinearoRegression… ............................................ 14-1
Chaptero15:oMultipleoRegressionoandoModeloBuilding… ............................................... 15-1
Chaptero16:oForecasting ........................................................................................... 16-1
Chaptero17:oDecisionoAnalysis…................................................................................ 17-1
Chaptero18:oNonparametricoStatistics… ..................................................................... 18-1

, CHAPTER 1 o



An Introduction to Business Statistics
o o o o




1.1 Quantitative/Interval.oTheodifferencesobetweenoaverageomonthlyotemperatur
esoareomeaningful,obutothereoisonootrueozeroopoint,oi.e.,oabsenceoofotemperat
ure.

1.2 Quantitative/Ratio.oTheodifferencesobetweenoaverageomonthlyorainfallsoareomeaningfu
l,oandothereoisoaotrueozeroopoint,obecauseothereomayobeoaomonthowithoutoanyorainfalls.

1.3 Qualitative/Ordinal.oYouocanorankoeducationolevel,obutotheodifferencesobetweenodiff
erentoeducationalolevelsocannotobeomeasured.

1.4 Qualitative/Nominal.oTheomaritalostatusoisojustoaolabelowithoutoaomeaningfulodifferen
ce,oororanking.

1.5 Quantitative/Ratio.oTheodifferencesobetweenoagesooforespondentsoareomeaningfuloandothere
isoaotrueozeroopoint:oanoageoofotheorespondentsothatoequalsozeroorepresentsotheoabsenceoofoage.

1.6 Qualitative/Nominal.oTheogendersoareomerelyolabelsowithonoorankingooromeani
ngfulodifference.

1.7 Quantitative/Interval.oTheodifferencesobetweenobirthoyearsoareomeaningful,obutothereoiso
nootrueozeroopointowithocalendaroyears.

1.8 Qualitative/oNominal.oTheopoliticaloaffiliationsoareomerelyolabelsowithonoorankin
gooromeaningfulodifference.

1.9 Qualitative/oNominal.oTheoracesoofotheorespondentsoareomerelyolabelsowithonoorank
ingooromeaningfulodifference.

1.10 Qualitative/oOrdinal.oYouocanorankotheoperformanceorating,obutotheodifferencesobet
weenodifferentoperformanceoratingsocannotobeomeasured.

1.11 Qualitative/oNominal.oTheouniformonumbersoofoeachomemberoofotheoschool’sosportote
amoareolabelsowithonoorankingooromeaningfulodifference.

1.12 Qualitative/ordinal.oTheodifferencesoinotheodataovaluesobetweenoclassorankso
areonotomeaningful.

, 1-2o o Chaptero1

1.13 Quantitative/Ratio.oTheodifferencesobetweenofinaloexamoscoresoforoyourostatisticsoclass
areomeaningful,oandothereoisoaotrueozeroopointobecauseoaostudentowhoodidonototakeotheo
examowouldohaveoaoscoreoofozero.

1.14 Qualitative/Nominal.oTheostateoinowhichotheorespondentsoinoaosurveyoresideoisoaolabel
oandoitoisomeaninglessotootalkoaboutotheoratingoofothisovalue.




1.15 Quantitative/Interval.o TheodifferencesobetweenoSAToscoresoforograduatingohighoschoolo
studentsoareomeaningful,obutothereoisonootrueozeroopointobecauseoaostudentowithoanoSA
Toscoreoequalotoozeroodoesonotoindicateotheoabsenceoofoaoscore.

1.16 Qualitative/Ordinal.oYouocanorankomovieoratings,obutotheodifferencesobet
weenodifferentoratingsocannotobeomeasured.

1.17 Qualitative/ordinal.oTheodifferencesoinotheodataovaluesobetweenoratingsoareonotomeaningful.

1.18 Qualitative/ordinal.oTheodifferencesoinotheodataovaluesobetweenoratingsoareonotomeaningful.

1.19 Cross-sectional

1.20 Timeoseries

1.21 Timeoseries:oMenoweeklyoearningsooverotheofiveoyears.o
Timeoseries:oWomenoweeklyoearningsooverotheofiveoyea
rs.

1.22 Cross-sectionalodata:oMenoandowomenoworkersoweeklyoearningsoforoanyooneoparticularoyear.

1.23 Cross-sectional:oTheonumberoofo8x10,o11x14oando13x19oprintsosoldooveroaoparticularoyear.

1.24 Timeoseries:otheonumberoofo8x10oprintsosoldooverotheofouroyea
rs.oTimeoseries:otheonumberoofo11x14oprintsosoldooverotheofour
oyears.oTimeoseries:otheonumberoofo13x19oprintsosoldooverotheo


fouroyears.

1.25 Descriptiveostatistics,obecauseoitoidentifiesoaosampleomean.

1.26 Inferentialostatistics,obecauseotheostatementsoaboutocomparingotheoaverageocostso
ofoaohoteloroomoinotwoostatesowasobasedoonoresultsofromosamplesotakenofromotwoop
opulations.