Test Bank For Business Statistics A First Course 7th Edition All Chapters - 9780321998309.pdf

DOWNLOAD THE Test Bank for Business Statistics 3rd Edition Donnelly
b b b b b b b b b




BusinessbStatisticsb(Donnelly)
Chapterb2b b DisplayingbDescriptivebStatistics

1) Abfrequencybdistributionbisbabtablebthatbshowsbthebnumberbofbdatabobservationsbthatbf
allbintobspecificbintervals.
Answer:b TRUEbDiff
:b1
Keywords:b frequencybdistributionb
Objective:b 2.2.1

2) Continuousbdatabarebvaluesbbasedbonbobservationsbthatbcanbbebcountedbandbarebtypicallybr
epresentedbbybwholebnumbers.
Answer:b FALSEbDi
ff:b1
Keywords:b discretebdatabObjective
:b 2.2.1

3) Continuousbdatabisboftenbthebresultbofbmeasuringbobservationsbratherbthanbcountingbt
hem.
Answer:b TRUEbDiff
:b1
Keywords:b continuousbdatabObject
ive:b 2.2.1

4) Discretebdatabcanbhavebanbinfinitebnumberbofbvaluesbwithinbabspecificbinterval.b
Answer:b FALSE
Diff:b2
Keywords:b discretebdatabObjective
:b 2.2.1

5) Thebonlyblimitationbinbthebnumberbofbcontinuousbvaluesbwithinbanbintervalbisbtheblevelbofbp
recisionbofbthebmeasuringbinstrument.
Answer:b TRUEbDiff
:b1
Keywords:b continuousbdatabObject
ive:b 2.2.1

6) Thebsumbofbthebrelativebfrequenciesbforbthebrelativebfrequencybdistributionbshouldbbebequalbtobo
rbverybclosebtob1.0bduebtobrounding.
Answer:b TRUEbDiff
:b1
Keywords:b relativebfrequencybdistributionsbObj
ective:b 2.2.1


2-1
Copyrightb©b2020bPearsonbEducation,bInc.


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2-2b b Chapterb2

7) Thebsumbofbthebcumulativebrelativebfrequenciesbforbthebcumulativebrelativebfrequencyb
distributionbshouldbbebequalbtoborbverybclosebtob1.0bduebtobrounding.
Answer:b FALSEbDi
ff:b2
Keywords:b cumulativebrelativebfrequencybdistributionsbObjectiv
e:b 2.2.1

8) Absymmetricalbdistributionbisbonebinbwhichbthebrightbsidebofbthebdistributionblooksblikebtheb
mirrorbimagebofbthebleftbsidebofbthebdistribution.
Answer:b TRUEbDiff
:b1
Keywords:b symmetricalbdistributionsbObjective
:b 2.2.1

9) Thebgoalbofbconstructingbabfrequencybdistributionbisbtobidentifybabusefulbpatternbinbthebdatabandbo
ftenbtherebisbmorebthanbonebacceptablebwaybtobaccomplishbthisbwithbgroupedbquantitativebdata.bAn
swer:b TRUE
Diff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

10) Whenbcreatingbabfrequencybdistributionbwithbgroupedbqualitativebdatabandb45bdatabpoints,bfivebc
lassesbshouldbbebsetbupbusingbtheb2kb>bnbrule.
Answer:b FALSEbDi
ff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

11) Whenbconstructingbabfrequencybdistributionbwithbgroupedbqualitativebdata,boccasionallybyoub
willbendbupbwithbkb+b1borbkb—b1bclassesbtobcoverbthebentirebdatabset.
Answer:b TRUEbDiff
:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

12) FiftybemployeesbatbCSCbCorporationbrespondedbtobabsurveybaskingbforbthebnumberbofbminutesbt
heybcommutebtobworkbinbthebmorning.bEighteenbemployeesbindicatedbthatbtheirbcommutesbareb15bto
blessbthanb20bminutes.bThebrelativebfrequencybforbthisbclassbinbabfrequencybdistributionbwouldbbeb0.1

8.
Answer:b FALSEbDi
ff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1




Copyrightb©b2020bPearsonbEducation,bInc.

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,DOWNLOAD THE Test Bank for Business Statistics 3rd Edition Donnelly
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DisplayingbDescriptivebStatisticsb b 2-3

13) FiftybemployeesbatbCSCbCorporationbrespondedbtobabsurveybaskingbforbthebnumberbofbminutesbt
heybcommutebtobworkbinbthebmorning.bManagementbwouldblikebtobknowbthebproportionbofbemploye
esbwhosebcommutebisblessbthanb30bminutes.bAbcumulativebrelativebfrequencybdistributionbusingbgro
upedbdatabwouldbprovidebthebinformationbtobanswerbthisbquestion.
Answer:b TRUEbDiff
:b1
Keywords:b cumulativebrelativebfrequencybdistributionsbObjectiv
e:b 2.2.1

14) Abfastbfoodbrestaurantbwouldblikebtobexaminebthebwaitbtimebforbcustomersbwhobusebthebdrive-
bthrubwindow.bThebfollowingbclassbboundariesbarebappropriatebtobconstruct babfrequencybdistributi

onbforbthisbdata.

NumberbofbMinutes
0-2
2-4
4-6
6-8

Answer:b FALSEbDi
ff:b2
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

15) Equal-
sizebclassesbreferbtobclassesbforbabfrequencybdistributionbusingbgroupedbquantitativebdatabthatbdo
bnotboverlap.

Answer:b FALSEbDi
ff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

16) Emptybclassesbforbabfrequencybdistributionbusingbgroupedbquantitativebdatabresultbfrombclassb
widthsbthatbarebtoobwide.
Answer:b FALSEbDi
ff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

17) Ifbthebclassbsizesbarebnotbequalbforbabfrequencybdistributionbusingbgroupedbquantitativebdata,bp
atternsbinbthebdistributionbcouldbbebmisleading.
Answer:b TRUEbDiff
:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1


Copyrightb©b2020bPearsonbEducation,bInc.

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, DOWNLOAD THE Test Bank for Business Statistics 3rd Edition Donnelly
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2-4b b Chapterb2

18) Underbnobcircumstancesbshouldbopen-
endedbclassesbbebusedbforbabfrequencybdistributionbusingbgroupedbquantitativebdata.
Answer:b FALSEbDi
ff:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

19) Thebestimatedbclassbwidthbforbabfrequencybdistributionbusingbgroupedbquantitativebdatabshouldb
bebroundedbtobanbintegerbvaluebtobmakebthebclassbboundariesbmorebreadable.
Answer:b TRUEbDiff
:b1
Keywords:b frequencybdistribution,bgroupedbquantitativebdatabOb
jective:b 2.2.1

20) Histogramsbdisplayingbcontinuousbdatabhavebgapsbbetweenbtheirbbars.b
Answer:b FALSE
Diff:b1
Keywords:b histograms,bcontinuousbdatabObjecti
ve:b 2.2.2

21) Histogramsbdisplayingbdiscretebdatabusuallybhavebgapsbbetweenbtheirbbars.b
Answer:b TRUE
Diff:b1
Keywords:b histograms,bcontinuousbdatabObjecti
ve:b 2.2.2

22) Incomebandbagebarebexamplesbofbdatabthatbarebtechnicallybdiscretebbutbarebnormallybdisplayedbi
nbabcontinuousbformat.
Answer:b TRUEbDiff
:b1
Keywords:b discretebdata,bcontinuousbdatabObjec
tive:b 2.2.2

23) Thebogivebisbablinebgraphbthatbplotsbthebcumulativebrelativebfrequencybdistribution.b
Answer:b TRUE
Diff:b1bKeywords
:b ogivebObjective
:b 2.2.2

24) Quantitativebdatabarebvaluesbthatbarebcategorical,bdescribingbabcharacteristicbsuchbasbgenderborbl
evelbofbeducation.
Answer:b FALSEbDi
ff:b1
Keywords:b qualitativebdatabObject
ive:b 2.3.1


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