Test Bank for Business Statistics for Contemporary Decision Making 7th Edition by Black Complete

,File:jch01,jChapterj1:jIntroductionjtojStatistics


True/False



1. Virtuallyjalljareasjofjbusinessjusejstatisticsjinjdecisionjmaking.

Ans:jTrue
Response:jSeejsectionj1.1,jStatisticsjinjBusinessjD
ifficulty:jEasy
LearningjObjective:j1.1:jListjquantitativejandjgraphicaljexamplesjofjstatisticsjwithinjajbusinessjcontex
t.



2. Thejcompletejcollectionjofj alljentitiesjunderjstudyjisjcalledjthejsample.

Ans:jFalse
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



3. Ajportionjorjsubsetjofjthejentitiesjunderjstudyjisjcalledjthejstatistic.

Ans:jFalse
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



4. Ajdescriptivejmeasurejofjthejpopulationjisjcalledjajparameter.

Ans:jTrue
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.

,5. Ajcensusjisjthejprocessjofjgatheringjdatajonjalljthejentitiesjinjthejpopulation.

Ans:jTrue
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



6. Statisticsjisjcommonlyjdividedjintojtwojbranchesjcalledjdescriptivejstatisticsjandjsummaryjstat
istics.

Ans:jFalse
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



7. Ajdescriptivejmeasurejofjthejsamplejisjcalledjajstatistic.

Ans:jTrue
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



8. Gatheringjdatajfromjajsamplejtojreachjconclusionsjaboutjthejpopulationjfromjwhichjthejsam
plejwasjdrawnjisjcalledjdescriptivejstatistics.

Ans:jFalse
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jMedium
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.

, 9. Calculationjofjpopulationjparametersjisjusuallyjeitherjimpossiblejorjexcessivelyjtimejco
nsumingjandjcostly.

Ans:jTrue
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.



10. Thejbasisjforjinferentialjstatisticsjisjthejabilityjtojmakejdecisionsjaboutjpopulationjparametersjwit
houtjhavingjtojcompletejajcensusjofjthejpopulation.

Ans:jTrue
Response:jSeejsectionj1.2,jBasicjStatisticaljConceptsjD
ifficulty:jEasy
LearningjObjective:j1.2:jdefinejimportantjstatisticaljterms,jincludingjpopulation,jsample,jandjparamet
er,jasjtheyjrelatejtojdescriptivejandjinferentialjstatistics.




11. Alljnumericaljdatajmustjbejanalyzedjstatisticallyjinjthejsamejwayjbecausejalljofjthemjarejrepr
esentedjbyjnumbers.

Ans:jFalse
Response:jSeejsectionj1.4,jDatajMeasurementjD
ifficulty:jMedium
LearningjObjective:j1.4:jComparejthejfourjdifferentjlevelsjofjdata:jnominal,jordinal,jinterval,jandjratio.



12. Thejmannerjinjwhichjnumericaljdatajcanjbejanalyzedjstatisticallyjdependsjonjthejleveljofjdatajmea
surementjrepresentedjbyjnumbersjbeingjanalyzed.

Ans:jTrue
Response:jSeejsectionj1.4,jDatajMeasurementjD
ifficulty:jMedium
LearningjObjective:j1.4:jComparejthejfourjdifferentjlevelsjofjdata:jnominal,jordinal,jinterval,jandjratio.