INSTRUCTOR’SSOLUTIONS MANUA
. .
L
DIRKTEMPELAAR
.
Masstricht University .
BUSINESS STATISTICS .
THIRD EDITION .
RobertA.Donnelly
. .
, Table of Contents
. .
Chapter. 1:. An. Introduction. to. Business. Statistics ............................................................................... 1-1
Chapter. 2:. Displaying. Descriptive. Statistics ...................................................................................... 2-1
Chapter. 3:. Calculating. Descriptive. Statistics ..................................................................................... 3-1
Chapter. 4:. Introduction. to. Probabilities .............................................................................................. 4-1
Chapter. 5:. Discrete. Probability. Distributions ..................................................................................... 5-1
Chapter. 6:. Continuous. Probability. Distributions................................................................................ 6-1
Chapter. 7:. Sampling. and. Sampling. Distributions ............................................................................... 7-1
Chapter. 8:. Confidence. Intervals ......................................................................................................... 8-1
Chapter. 9:. Hypothesis. Testing. for. a. Single. Population ....................................................................... 9-1
Chapter. 10:. Hypothesis. Tests. Comparing. Two. Populations ............................................................. 10-1
Chapter. 11:. Analysis. of. Variance. (ANOVA). Procedures ................................................................. 11-1
Chapter. 12:. Chi-Square. Tests ............................................................................................................ 12-1
Chapter. 13:. Hypothesis. Tests. for. the. Population. Variance................................................................ 13-1
Chapter. 14:. Correlation. and. Simple. Linear. Regression ..................................................................... 14-1
Chapter. 15:. Multiple. Regression. and. Model. Building ...................................................................... 15-1
Chapter. 16:. Forecasting ..................................................................................................................... 16-1
Chapter. 17:. Decision. Analysis ......................................................................................................... 17-1
Chapter. 18:. Nonparametric. Statistics ................................................................................................18-1
, CHAPTER 1 .
An Introduction to Business Statistics
. . . .
1.1 Quantitative/Interval..The.differences.between.average.monthly.temperatures.are. mea
ningful,.but.there.is.no.true.zero.point,.i.e.,.absence.of.temperature.
1.2 Quantitative/Ratio..The.differences.between.average.monthly.rainfalls.are.meaningful,.and.the
re.is.a.true.zero.point,.because.there.may.be.a.month.without.any.rainfalls.
1.3 Qualitative/Ordinal..You.can.rank.education.level,.but.the.differences.between.different.edu
cational.levels.cannot.be.measured.
1.4 Qualitative/Nominal..The.marital.status.is.just.a.label.without.a.meaningful.difference,.or.rank
ing.
1.5 Quantitative/Ratio.. The. differences. between. ages. of. respondents. are. meaningful. and. there
is.a.true.zero.point:.an.age.of.the.respondents.that.equals.zero.represents.the.absence.of.age.
1.6 Qualitative/Nominal..The.genders.are.merely.labels.with.no.ranking.or.meaningful.diff
erence.
1.7 Quantitative/Interval..The.differences.between.birth.years.are.meaningful,.but.there.is.no.true.zero
.point. with. calendar. years.
1.8 Qualitative/.Nominal..The.political.affiliations.are.merely.labels.with.no.ranking.or.me
aningful.difference.
1.9 Qualitative/.Nominal..The.races.of.the.respondents.are.merely.labels.with.no.ranking.or.mea
ningful.difference.
1.10 Qualitative/.Ordinal..You.can.rank.the.performance.rating,.but.the.differences.between.diff
erent.performance.ratings.cannot.be.measured.
1.11 Qualitative/.Nominal..The.uniform.numbers.of.each.member.of.the.school’s.sport.team.are.labe
ls.with.no.ranking.or.meaningful.difference.
1.12 Qualitative/ordinal..The.differences.in.the.data.values.between.class.ranks.are.not.mea
ningful.
, 1-2. Chapter.1
1.13 Quantitative/Ratio..The.differences.between.final.exam.scores.for.your.statistics.class
are.meaningful,.and.there.is.a.true.zero.point.because.a.student.who.did.not.take.the.exam.would.
have.a.score.of.zero.
1.14 Qualitative/Nominal..The.state.in.which.the.respondents.in.a.survey.reside.is.a.label.and.it.is.me
aningless.to.talk.about.the.rating.of.this.value.
1.15 Quantitative/Interval..The.differences.between.SAT.scores.for.graduating.high.school.students
.are.meaningful, .but .there.is.no.true.zero.point.because.a.student.with.an.SAT. score. equal.to. zero. d
oes.not.indicate.the.absence.of.a.score.
1.16 Qualitative/Ordinal..You.can.rank.movie.ratings,.but.the.differences.between.dif
ferent.ratings.cannot.be.measured.
1.17 Qualitative/ordinal..The.differences.in.the.data.values.between.ratings.are.not.meaningful.
1.18 Qualitative/ordinal..The.differences.in.the.data.values.between.ratings.are.not.meaningful.
1.19 Cross-sectional
1.20 Time.series
1.21 Time.series:.Men.weekly.earnings.over.the.five.years..Time.
series:.Women.weekly.earnings.over.the.five.years.
1.22 Cross-sectional.data:.Men.and.women.workers.weekly.earnings.for.any.one.particular.year.
1.23 Cross-sectional:.The.number.of.8x10,.11x14.and.13x19.prints.sold.over.a.particular.year.
1.24 Time.series:.the.number.of.8x10.prints.sold.over.the.four.years..Tim
e.series:.the.number.of.11x14.prints.sold.over.the.four.years..Time.se
ries:.the.number.of.13x19.prints.sold.over.the.four.years.
1.25 Descriptive.statistics,.because.it.identifies.a.sample.mean.
1.26 Inferential.statistics,.because.the.statements.about.comparing.the.average.costs.of.a.hotel.roo
m.in.two.states.was.based.on.results.from.samples.taken.from.two.populations.
. .
L
DIRKTEMPELAAR
.
Masstricht University .
BUSINESS STATISTICS .
THIRD EDITION .
RobertA.Donnelly
. .
, Table of Contents
. .
Chapter. 1:. An. Introduction. to. Business. Statistics ............................................................................... 1-1
Chapter. 2:. Displaying. Descriptive. Statistics ...................................................................................... 2-1
Chapter. 3:. Calculating. Descriptive. Statistics ..................................................................................... 3-1
Chapter. 4:. Introduction. to. Probabilities .............................................................................................. 4-1
Chapter. 5:. Discrete. Probability. Distributions ..................................................................................... 5-1
Chapter. 6:. Continuous. Probability. Distributions................................................................................ 6-1
Chapter. 7:. Sampling. and. Sampling. Distributions ............................................................................... 7-1
Chapter. 8:. Confidence. Intervals ......................................................................................................... 8-1
Chapter. 9:. Hypothesis. Testing. for. a. Single. Population ....................................................................... 9-1
Chapter. 10:. Hypothesis. Tests. Comparing. Two. Populations ............................................................. 10-1
Chapter. 11:. Analysis. of. Variance. (ANOVA). Procedures ................................................................. 11-1
Chapter. 12:. Chi-Square. Tests ............................................................................................................ 12-1
Chapter. 13:. Hypothesis. Tests. for. the. Population. Variance................................................................ 13-1
Chapter. 14:. Correlation. and. Simple. Linear. Regression ..................................................................... 14-1
Chapter. 15:. Multiple. Regression. and. Model. Building ...................................................................... 15-1
Chapter. 16:. Forecasting ..................................................................................................................... 16-1
Chapter. 17:. Decision. Analysis ......................................................................................................... 17-1
Chapter. 18:. Nonparametric. Statistics ................................................................................................18-1
, CHAPTER 1 .
An Introduction to Business Statistics
. . . .
1.1 Quantitative/Interval..The.differences.between.average.monthly.temperatures.are. mea
ningful,.but.there.is.no.true.zero.point,.i.e.,.absence.of.temperature.
1.2 Quantitative/Ratio..The.differences.between.average.monthly.rainfalls.are.meaningful,.and.the
re.is.a.true.zero.point,.because.there.may.be.a.month.without.any.rainfalls.
1.3 Qualitative/Ordinal..You.can.rank.education.level,.but.the.differences.between.different.edu
cational.levels.cannot.be.measured.
1.4 Qualitative/Nominal..The.marital.status.is.just.a.label.without.a.meaningful.difference,.or.rank
ing.
1.5 Quantitative/Ratio.. The. differences. between. ages. of. respondents. are. meaningful. and. there
is.a.true.zero.point:.an.age.of.the.respondents.that.equals.zero.represents.the.absence.of.age.
1.6 Qualitative/Nominal..The.genders.are.merely.labels.with.no.ranking.or.meaningful.diff
erence.
1.7 Quantitative/Interval..The.differences.between.birth.years.are.meaningful,.but.there.is.no.true.zero
.point. with. calendar. years.
1.8 Qualitative/.Nominal..The.political.affiliations.are.merely.labels.with.no.ranking.or.me
aningful.difference.
1.9 Qualitative/.Nominal..The.races.of.the.respondents.are.merely.labels.with.no.ranking.or.mea
ningful.difference.
1.10 Qualitative/.Ordinal..You.can.rank.the.performance.rating,.but.the.differences.between.diff
erent.performance.ratings.cannot.be.measured.
1.11 Qualitative/.Nominal..The.uniform.numbers.of.each.member.of.the.school’s.sport.team.are.labe
ls.with.no.ranking.or.meaningful.difference.
1.12 Qualitative/ordinal..The.differences.in.the.data.values.between.class.ranks.are.not.mea
ningful.
, 1-2. Chapter.1
1.13 Quantitative/Ratio..The.differences.between.final.exam.scores.for.your.statistics.class
are.meaningful,.and.there.is.a.true.zero.point.because.a.student.who.did.not.take.the.exam.would.
have.a.score.of.zero.
1.14 Qualitative/Nominal..The.state.in.which.the.respondents.in.a.survey.reside.is.a.label.and.it.is.me
aningless.to.talk.about.the.rating.of.this.value.
1.15 Quantitative/Interval..The.differences.between.SAT.scores.for.graduating.high.school.students
.are.meaningful, .but .there.is.no.true.zero.point.because.a.student.with.an.SAT. score. equal.to. zero. d
oes.not.indicate.the.absence.of.a.score.
1.16 Qualitative/Ordinal..You.can.rank.movie.ratings,.but.the.differences.between.dif
ferent.ratings.cannot.be.measured.
1.17 Qualitative/ordinal..The.differences.in.the.data.values.between.ratings.are.not.meaningful.
1.18 Qualitative/ordinal..The.differences.in.the.data.values.between.ratings.are.not.meaningful.
1.19 Cross-sectional
1.20 Time.series
1.21 Time.series:.Men.weekly.earnings.over.the.five.years..Time.
series:.Women.weekly.earnings.over.the.five.years.
1.22 Cross-sectional.data:.Men.and.women.workers.weekly.earnings.for.any.one.particular.year.
1.23 Cross-sectional:.The.number.of.8x10,.11x14.and.13x19.prints.sold.over.a.particular.year.
1.24 Time.series:.the.number.of.8x10.prints.sold.over.the.four.years..Tim
e.series:.the.number.of.11x14.prints.sold.over.the.four.years..Time.se
ries:.the.number.of.13x19.prints.sold.over.the.four.years.
1.25 Descriptive.statistics,.because.it.identifies.a.sample.mean.
1.26 Inferential.statistics,.because.the.statements.about.comparing.the.average.costs.of.a.hotel.roo
m.in.two.states.was.based.on.results.from.samples.taken.from.two.populations.
