100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
QMB 3200 Final Exam UCF (Latest Update) Questions & Verified Answers| 100% Correct| Grade A £8.71   Add to cart

Exam (elaborations)

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

 6 views  0 purchase
  • Module
  • QMB 3200
  • Institution
  • QMB 3200

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...

[Show more]

Preview 4 out of 46  pages

  • October 25, 2024
  • 46
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • QMB 3200
  • QMB 3200
avatar-seller
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.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller nurse_steph. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £8.71. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84197 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£8.71
  • (0)
  Add to cart