,Ch.n1 IntroductionntonStatistics
1.1 AnnOverviewnofnStatistics
1 Distinguishn Betweenn an Populationn andn an Sample
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Identifyn then populationn andn then sample.
1) An surveyn ofn 1378n Americann householdsn foundn thatn 27%n ofn then householdsn ownn an computer.
2) Whenn 1094n Americann householdsn weren surveyed,n itn wasn foundn thatn 67%n ofn themn ownedn twon cars.
3) An surveyn ofn 2625n elementaryn schooln childrenn foundn thatn 28%n ofn then childrenn couldn ben classifiedn asn obese.
2 Distinguishn Betweenn an Parametern andn an Statistic
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Determinen whethern then numericaln valuen isn an parametern orn an statistic.n Explainn yourn reasoning.
4) Anrecentnsurveynbynthenalumninofnanmajornuniversitynindicatednthatnthenaveragensalarynofn 10,500nofnitsn175,000
ngraduatesnwasn$95,000.
5) Then averagen salaryn ofn alln assemblyn-linen employeesn atn an certainn carn manufacturern isn $41,000..
6) An surveyn ofn 1162n studentsn wasn takenn fromn an universityn withn 10,000n students.
3 Distinguishn Betweenn Descriptiven Statisticsn andn Inferentialn Statistics
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Identifyn whethern then statementn describesn inferentialn statisticsn orn descriptiven statistics.
7) Then averagen agen ofn then studentsn inn an statisticsn classn isn 19n years.
A) descriptiven statistics B)n inferentialn statistics
8) Then chancesn ofn winningn then Californian Lotteryn aren onen chancen inn twenty-twon million.
A) inferentialn statistics B)n descriptiven statistics
9) Theren isn an relationshipn betweenn smokingn cigarettesn andn gettingn emphysema.
A) inferentialn statistics B)n descriptiven statistics
10) Fromn pastn figures,n itn isn predictedn thatn 19%n ofn then registeredn votersn inn Californian willn voten inn then Junen primary.
A) inferentialn statistics B)n descriptiven statistics
11) Basednonnpreviousnclients,nanmarriagencounselornconcludesnthatnthenmajoritynofnmarriagesnthatnbeginnwith
n cohabitationnbeforenmarriagenwillnresultninndivorce.
A) inferentialn statistics B)n descriptiven statistics
4 Concepts
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Providen ann appropriaten response.
12) Explainn then differencen betweenn an samplen andn an population.
13) Ifn youn hadn ton don an statisticaln study,n wouldn youn usen an samplen orn an population?n Why?
Pagen 1
Copyrightn©n2012nPearsonnEducation,nInc
.
,1.2 DatanClassification
1n n Distinguishn Betweenn Qualitativen andn Quantitativen Data
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Determinen whethern then datan aren qualitativen orn quantitative.
1) then colorsn ofn automobilesn onn an usedn carn lot
A) qualitative B)n quantitative
2) then numbern ofn complaintn lettersn receivedn byn then Unitedn Statesn Postaln Servicen inn an givenn day
A) quantitative B)n qualitative
3) then numbern ofn seatsn inn an movien theater
A) quantitative B)n qualitative
4) then numbersn onn then shirtsn ofn an girlʹsn soccern team
A) qualitative B)n quantitative
2n n ClassifynDatan withn Respectn ton then Fourn Levelsn ofnMeasurement
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Identifyn then datan setʹsn leveln ofn measurement.
5) hairn colorn ofn womenn onn an highn schooln tennisn team
A) nominal B)n ordinal C)n interval D)n ratio
6) numbersn onn then shirtsn ofn an girlʹsn soccern team
A) nominal B)n ordinal C)n interval D)n ratio
7) agesn ofn studentsn inn an statisticn class
A) ratio B)n ordinal C)n interval D)n nominal
8) temperaturesn ofn 12n selectedn refrigerators
A) interval B)n ordinal C)n nominal D)n ratio
9) numbern ofn milligramsn ofn tarn inn 85n cigarettes
A) ratio B)n ordinal C)n interval D)n nominal
10) numbern ofn pagesn inn yourn statisticsn book
A) ratio B)n ordinal C)n interval D)n nominal
11) marriagen statusn (married,n single,n orn divorced)n ofn then facultyn atn then Universityn ofn Colorado
A) nominal B)n ordinal C)n interval D)n ratio
12) listn ofn1202n socialn securityn numbers
A) nominal B)n ordinal C)n interval D)n ratio
13) then ratingsn ofn an movien rangingn fromn ʺpoorʺn ton ʺgoodʺn ton ʺexcellentʺ
A) ordinal B)n nominal C)n interval D)n ratio
14) then finaln gradesn (A,n B,n C,n D,n andn F)n forn studentsn inn an statisticsn class
A) ordinal B)n nominal C)n interval D)n ratio
15) then annualn salariesn forn alln teachersn inn California
A) ratio B)n ordinal C)n interval D)n nominal
Pagen 2
Copyrightn©n2012nPearsonnEducation,nInc
.
, 16) listn ofn zipn codesn forn Chicago
A) nominal B)n ordinal C)n interval D)n ratio
17) then nationalitiesn listedn inn an recentn surveyn (forn example,n Asian,n European,n orn Hispanic).
A) nominal B)n ordinal C)n interval D)n ratio
18) then amountsn ofn fatn (inn grams)n inn 52n cookies
A) ratio B)n ordinal C)n interval D)n nominal
19) then yearsn then summern Olympicsn weren heldn inn then Unitedn States
A) interval B)n ordinal C)n nominal D)n ratio
20) numbersn ofn touchdownsn scoredn byn an majorn universityn inn fiven randomlyn selectedn games
5 3 1 2 4
A) ratio B)n ordinal C)n interval D)n nominal
21) then averagen dailyn temperaturesn (inn degreesn Fahrenheit)n onn fiven randomlyn selectedn days
35n n 24n n 30n n 31n n 34
A) interval B)n nominal C)n ordinal D)n ratio
22) manuscriptsn ratedn ʺacceptableʺn orn ʺunacceptableʺ
A) ordinal B)n nominal C)n ratio D)n interval
23) then lengthsn (inn minutes)n ofn then topn tenn moviesn withn respectn ton ticketn salesn inn 2007
A) ratio B)n nominal C)n ordinal D)n interval
24) then datan listedn onn then horizontaln axisn inn then graph
A) nominal B)n interval C)n ordinal D)n ratio
Pagen 3
Copyrightn©n2012nPearsonnEducation,nInc
.
1.1 AnnOverviewnofnStatistics
1 Distinguishn Betweenn an Populationn andn an Sample
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Identifyn then populationn andn then sample.
1) An surveyn ofn 1378n Americann householdsn foundn thatn 27%n ofn then householdsn ownn an computer.
2) Whenn 1094n Americann householdsn weren surveyed,n itn wasn foundn thatn 67%n ofn themn ownedn twon cars.
3) An surveyn ofn 2625n elementaryn schooln childrenn foundn thatn 28%n ofn then childrenn couldn ben classifiedn asn obese.
2 Distinguishn Betweenn an Parametern andn an Statistic
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Determinen whethern then numericaln valuen isn an parametern orn an statistic.n Explainn yourn reasoning.
4) Anrecentnsurveynbynthenalumninofnanmajornuniversitynindicatednthatnthenaveragensalarynofn 10,500nofnitsn175,000
ngraduatesnwasn$95,000.
5) Then averagen salaryn ofn alln assemblyn-linen employeesn atn an certainn carn manufacturern isn $41,000..
6) An surveyn ofn 1162n studentsn wasn takenn fromn an universityn withn 10,000n students.
3 Distinguishn Betweenn Descriptiven Statisticsn andn Inferentialn Statistics
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Identifyn whethern then statementn describesn inferentialn statisticsn orn descriptiven statistics.
7) Then averagen agen ofn then studentsn inn an statisticsn classn isn 19n years.
A) descriptiven statistics B)n inferentialn statistics
8) Then chancesn ofn winningn then Californian Lotteryn aren onen chancen inn twenty-twon million.
A) inferentialn statistics B)n descriptiven statistics
9) Theren isn an relationshipn betweenn smokingn cigarettesn andn gettingn emphysema.
A) inferentialn statistics B)n descriptiven statistics
10) Fromn pastn figures,n itn isn predictedn thatn 19%n ofn then registeredn votersn inn Californian willn voten inn then Junen primary.
A) inferentialn statistics B)n descriptiven statistics
11) Basednonnpreviousnclients,nanmarriagencounselornconcludesnthatnthenmajoritynofnmarriagesnthatnbeginnwith
n cohabitationnbeforenmarriagenwillnresultninndivorce.
A) inferentialn statistics B)n descriptiven statistics
4 Concepts
SHORTn ANSWER.n Writen then wordn orn phrasen thatn bestn completesn eachn statementn orn answersn then question.
Providen ann appropriaten response.
12) Explainn then differencen betweenn an samplen andn an population.
13) Ifn youn hadn ton don an statisticaln study,n wouldn youn usen an samplen orn an population?n Why?
Pagen 1
Copyrightn©n2012nPearsonnEducation,nInc
.
,1.2 DatanClassification
1n n Distinguishn Betweenn Qualitativen andn Quantitativen Data
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Determinen whethern then datan aren qualitativen orn quantitative.
1) then colorsn ofn automobilesn onn an usedn carn lot
A) qualitative B)n quantitative
2) then numbern ofn complaintn lettersn receivedn byn then Unitedn Statesn Postaln Servicen inn an givenn day
A) quantitative B)n qualitative
3) then numbern ofn seatsn inn an movien theater
A) quantitative B)n qualitative
4) then numbersn onn then shirtsn ofn an girlʹsn soccern team
A) qualitative B)n quantitative
2n n ClassifynDatan withn Respectn ton then Fourn Levelsn ofnMeasurement
MULTIPLEn CHOICE.n Choosen then onen alternativen thatn bestn completesn then statementn orn answersn then question.
Identifyn then datan setʹsn leveln ofn measurement.
5) hairn colorn ofn womenn onn an highn schooln tennisn team
A) nominal B)n ordinal C)n interval D)n ratio
6) numbersn onn then shirtsn ofn an girlʹsn soccern team
A) nominal B)n ordinal C)n interval D)n ratio
7) agesn ofn studentsn inn an statisticn class
A) ratio B)n ordinal C)n interval D)n nominal
8) temperaturesn ofn 12n selectedn refrigerators
A) interval B)n ordinal C)n nominal D)n ratio
9) numbern ofn milligramsn ofn tarn inn 85n cigarettes
A) ratio B)n ordinal C)n interval D)n nominal
10) numbern ofn pagesn inn yourn statisticsn book
A) ratio B)n ordinal C)n interval D)n nominal
11) marriagen statusn (married,n single,n orn divorced)n ofn then facultyn atn then Universityn ofn Colorado
A) nominal B)n ordinal C)n interval D)n ratio
12) listn ofn1202n socialn securityn numbers
A) nominal B)n ordinal C)n interval D)n ratio
13) then ratingsn ofn an movien rangingn fromn ʺpoorʺn ton ʺgoodʺn ton ʺexcellentʺ
A) ordinal B)n nominal C)n interval D)n ratio
14) then finaln gradesn (A,n B,n C,n D,n andn F)n forn studentsn inn an statisticsn class
A) ordinal B)n nominal C)n interval D)n ratio
15) then annualn salariesn forn alln teachersn inn California
A) ratio B)n ordinal C)n interval D)n nominal
Pagen 2
Copyrightn©n2012nPearsonnEducation,nInc
.
, 16) listn ofn zipn codesn forn Chicago
A) nominal B)n ordinal C)n interval D)n ratio
17) then nationalitiesn listedn inn an recentn surveyn (forn example,n Asian,n European,n orn Hispanic).
A) nominal B)n ordinal C)n interval D)n ratio
18) then amountsn ofn fatn (inn grams)n inn 52n cookies
A) ratio B)n ordinal C)n interval D)n nominal
19) then yearsn then summern Olympicsn weren heldn inn then Unitedn States
A) interval B)n ordinal C)n nominal D)n ratio
20) numbersn ofn touchdownsn scoredn byn an majorn universityn inn fiven randomlyn selectedn games
5 3 1 2 4
A) ratio B)n ordinal C)n interval D)n nominal
21) then averagen dailyn temperaturesn (inn degreesn Fahrenheit)n onn fiven randomlyn selectedn days
35n n 24n n 30n n 31n n 34
A) interval B)n nominal C)n ordinal D)n ratio
22) manuscriptsn ratedn ʺacceptableʺn orn ʺunacceptableʺ
A) ordinal B)n nominal C)n ratio D)n interval
23) then lengthsn (inn minutes)n ofn then topn tenn moviesn withn respectn ton ticketn salesn inn 2007
A) ratio B)n nominal C)n ordinal D)n interval
24) then datan listedn onn then horizontaln axisn inn then graph
A) nominal B)n interval C)n ordinal D)n ratio
Pagen 3
Copyrightn©n2012nPearsonnEducation,nInc
.
