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QMB 3200 Final Exam UCF (Latest Update) Questions & Verified Answers| 100% Correct| Grade A $10.99   Add to cart

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QMB 3200 Final Exam UCF (Latest Update) Questions & Verified Answers| 100% Correct| Grade A

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QMB 3200 Final Exam UCF (Latest Update) Questions & Verified Answers| 100% Correct| Grade A Q: The distribution of values taken by a statistic in all possible samples of the same size from the same population is the sampling distribution of Answer: The sample Q: Which of these bes...

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  • October 25, 2024
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nurse_steph
QMBl3200lFinallExamlUCFl(LatestlUpdate)
lQuestionsl&lVerifiedlAnswers|l100%
lCorrect|lGradelA

Q:lTheldistributionloflvaluesltakenlbylalstatisticlinlalllpossiblelsamplesloflthelsamelsizelfroml
thelsamelpopulationlislthelsamplingldistributionlof


Answer:
Thelsample




Q:lWhichlofltheselbestldescribeslalsamplingldistributionloflalstatistic?

Answer:
Itlisltheldistributionloflallloflthelstatisticslcalculatedlfromlalllpossiblelsamplesloflthelsamelsamp
lelsize.




Q:lThelprobabilityldistributionloflalllpossiblelvaluesloflthelsamplelproportionlislthe

Answer:
samplingldistributionloflp.




Q:lForlalfixedlconfidencellevellandlpopulationlstandardldeviation,liflwelwouldllikeltolcutlourl
marginloflerrorlinlhalf,lwelshouldltakelalsamplelsizelthatlis


Answer:
fourltimeslasllargelasltheloriginallsamplelsize.

,Q:lWelcanlreducelthelmarginloflerrorlinlanlintervallestimateloflplbyldoinglanyloflthelfollowin
glexcept


Answer:
increasinglthelplanninglvaluelp*ltol.5.




Q:lWhenlcomputinglthelsamplelsizelneededltolestimatelalproportionlwithinlalgivenlmarginlofl
errorlforlalspecificlconfidencellevel,lwhatlplanninglvalueloflplshouldlbelusedlwhenlnolestimatel
oflplislavailable?


Answer:
0.50




Q:lAlstatisticslteacherlstartedlclassloneldaylbyldrawinglthelnameslofl10lstudentsloutloflalhatla
ndlaskedlthemltoldolaslmanylpushupslasltheylcould.lThel10lrandomlylselectedlstudentslaverage
dl15lpushupslperlpersonlwithlalstandardldeviationlofl9lpushups.lSupposeltheldistributionloflthel
populationloflnumberloflpushupslthatlcanlbeldonelislapproximatelylnormal.lWhichloflthelfollo
winglstatementslisltrue?


Answer:
Altldistributionlshouldlbelusedlbecauselσlislunknown.




Q:lThelzlvaluelforlal99%lconfidencelintervallestimationlis

Answer:
2.58

,Q:lInlanlintervallestimationlforlalproportionloflalpopulation,lthelcriticallvalueloflzlatl99%lcon
fidencelis


Answer:
2.576.




Q:lInlintervallestimation,laslthelsamplelsizelbecomesllarger,lthelintervallestimate

Answer:
becomeslnarrower.Inlgeneral,lhigherlconfidencellevelslprovidellargerlconfidencelintervals.




Q:lOnelwayltolhavelhighlconfidencelandlalsmalllmarginloflerrorlislto

Answer:
increaselthelsamplelsize.




Q:lFromlalpopulationlthatlislnormallyldistributed,lalsamplelofl30lelementslislselectedlandlthel
standardldeviationloflthelsamplelislcomputed.lForlthelintervallestimationloflμ,lthelproperldistrib
utionltoluselislthe


Answer:
tldistributionlwithl29ldegreesloflfreedom.




Q:lAslthelnumberlofldegreesloflfreedomlforlaltldistributionlincreases,ltheldifferencelbetweenlt
heltldistributionlandlthelstandardlnormalldistribution


Answer:
becomeslsmaller.

, Q:lThelvalueladdedlandlsubtractedlfromlalpointlestimatelinlorderltoldeveloplanlintervallestim
ateloflthelpopulationlparameterlislknownlaslthe


Answer:
marginloflerror.




Q:lWhatlislthelsymbollforlthelpopulationlmean?lIflthelpopulationlfollowslalnormalldistributio
n,lthelconfidencelintervallisl_____landlcanlbelusedlforlanylsamplelsize.lIflthelpopulationldoesln
otlfollowlalnormalldistribution,lthelconfidencelintervallwilllbel_____.lWhichloflthelfollowinglc
hoiceslcorrectlylcompletelthislstatement?


Answer:
exact;lapproximate.




Q:lTheltlvaluelforlal99%lconfidencelintervallestimationlbasedluponlalsampleloflsizel10lis

Answer:
3.250.




Q:lTolcomputelthelnecessarylsamplelsizelforlanlintervallestimateloflalpopulationlproportion,la
llloflthelfollowinglprocedureslarelrecommendedlwhenlplislunknownlexcept


Answer:
usingl.95laslanlestimate.

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