Business Statistics, 3rd Edition – Robert A. Donnelly – Complete Instructor’s Solutions Manual (Chapters 1–18)

INSTRUCTOR’S SOLUTIONS u u




MANUAL
DIRK TEMPELAAR
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Masstricht University
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BUSINESS STATISTICS u




THIRD E DITION u




Robert A. Donnelly u u




Complete Chapter Solutions Manuala
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re included (Ch 1 to 18)
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** Immediate Download
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** Swift Response
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** All Chapters included
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, Table of Contents
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Chapteru1:uAnuIntroductionutouBusinessuStatistics… .................................................................... 1-1
Chapteru2:uDisplayinguDescriptiveuStatistics… ............................................................................ 2-1
Chapteru3:uCalculatinguDescriptiveuStatistics… ...........................................................................3-1
Chapteru4:uIntroductionutouProbabilities… .................................................................................. 4-1
Chapteru5:uDiscreteuProbabilityuDistributions….......................................................................... 5-1
Chapteru6:uContinuousuProbabilityuDistributions… .................................................................... 6-1
Chapteru7:uSamplinguanduSamplinguDistributions… ....................................................................7-1
Chapteru8:uConfidenceuIntervals… ............................................................................................... 8-1
Chapteru9:uHypothesisuTestinguforuauSingleuPopulation… ........................................................... 9-1
Chapteru10:uHypothesisuTestsuComparinguTwouPopulations… .................................................. 10-1
Chapteru11:uAnalysisuofuVarianceu(ANOVA)uProcedures… ...................................................... 11-1
Chapteru12:uChi-SquareuTests…................................................................................................. 12-1
Chapteru13:uHypothesisuTestsuforutheuPopulationuVariance… .................................................... 13-1
Chapteru14:uCorrelationuanduSimpleuLinearuRegression… ......................................................... 14-1
Chapteru15:uMultipleuRegressionuanduModeluBuilding… ........................................................... 15-1
Chapteru16:uForecasting ............................................................................................................. 16-1
Chapteru17:uDecisionuAnalysis… .............................................................................................. 17-1
Chapteru18:uNonparametricuStatistics… ..................................................................................... 18-1

, CHAPTER 1 u



An Introduction to Business Statistics
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1.1 Quantitative/Interval.uTheudifferencesubetweenuaverageumonthlyutemperaturesuareu
meaningful,ubututhereuisunoutrueuzeroupoint,ui.e.,uabsenceuofutemperature.

1.2 Quantitative/Ratio.uTheudifferencesubetweenuaverageumonthlyurainfallsuareumeaningful,uandut
hereuisuautrueuzeroupoint,ubecauseuthereumayubeuaumonthuwithoutuanyurainfalls.

1.3 Qualitative/Ordinal.uYouucanurankueducationulevel,ubututheudifferencesubetweenudifferentu
educationalulevelsucannotubeumeasured.

1.4 Qualitative/Nominal.uTheumaritalustatusuisujustuaulabeluwithoutuaumeaningfuludifference,uorur
anking.

1.5 Quantitative/Ratio.uTheudifferencesubetweenuagesuofurespondentsuareumeaningfuluanduthere
isuautrueuzeroupoint:uanuageuofutheurespondentsuthatuequalsuzerourepresentsutheuabsenceuofuage.

1.6 Qualitative/Nominal.uTheugendersuareumerelyulabelsuwithunourankinguorumeaningfulu
difference.

1.7 Quantitative/Interval.uTheudifferencesubetweenubirthuyearsuareumeaningful,ubututhereuisunoutrueuz
eroupointuwithucalendaruyears.

1.8 Qualitative/uNominal.uTheupoliticaluaffiliationsuareumerelyulabelsuwithunourankinguoru
meaningfuludifference.

1.9 Qualitative/uNominal.uTheuracesuofutheurespondentsuareumerelyulabelsuwithunourankinguoru
meaningfuludifference.

1.10 Qualitative/uOrdinal.uYouucanurankutheuperformanceurating,ubututheudifferencesubetweenud
ifferentuperformanceuratingsucannotubeumeasured.

1.11 Qualitative/uNominal.uTheuuniformunumbersuofueachumemberuofutheuschool’susportuteamuareul
abelsuwithunourankinguorumeaningfuludifference.

1.12 Qualitative/ordinal.uTheudifferencesuinutheudatauvaluesubetweenuclassuranksuareunotu
meaningful.

, 1-2u Chapteru1

1.13 Quantitative/Ratio.uTheudifferencesubetweenufinaluexamuscoresuforuyourustatisticsuclass
areumeaningful,uanduthereuisuautrueuzeroupointubecauseuaustudentuwhoudidunotutakeutheuexamuwou
lduhaveuauscoreuofuzero.

1.14 Qualitative/Nominal.uTheustateuinuwhichutheurespondentsuinuausurveyuresideuisuaulabeluanduitui
sumeaninglessutoutalkuaboututheuratinguofuthisuvalue.

1.15 Quantitative/Interval.uTheudifferencesubetweenuSATuscoresuforugraduatinguhighuschoolustude
ntsuareumeaningful,ubututhereuisunoutrueuzeroupointubecauseuaustudentuwithuanuSATuscoreuequalut
ouzeroudoesunotuindicateutheuabsenceuofuauscore.

1.16 Qualitative/Ordinal.uYouucanurankumovieuratings,ubututheudifferencesubetweenu
differenturatingsucannotubeumeasured.

1.17 Qualitative/ordinal.uTheudifferencesuinutheudatauvaluesubetweenuratingsuareunotumeaningful.

1.18 Qualitative/ordinal.uTheudifferencesuinutheudatauvaluesubetweenuratingsuareunotumeaningful.

1.19 Cross-sectional

1.20 Timeuseries

1.21 Timeuseries:uMenuweeklyuearningsuoverutheufiveuyears.uTi
meuseries:uWomenuweeklyuearningsuoverutheufiveuyears.

1.22 Cross-sectionaludata:uMenuanduwomenuworkersuweeklyuearningsuforuanyuoneuparticularuyear.

1.23 Cross-sectional:uTheunumberuofu8x10,u11x14uandu13x19uprintsusolduoveruauparticularuyear.

1.24 Timeuseries:utheunumberuofu8x10uprintsusolduoverutheufouruyears.uT
imeuseries:utheunumberuofu11x14uprintsusolduoverutheufouruyears.uTi
meuseries:utheunumberuofu13x19uprintsusolduoverutheufouruyears.

1.25 Descriptiveustatistics,ubecauseuituidentifiesuausampleumean.

1.26 Inferentialustatistics,ubecauseutheustatementsuaboutucomparingutheuaverageucostsuofuauhotelur
oomuinutwoustatesuwasubaseduonuresultsufromusamplesutakenufromutwoupopulations.