Theexamplein Section 5.2.2 could notdeterminewhetheramajorityorminorityofAmericans consider climatechangetobeamajorthreat.However,thisisclearerforparticulargroups. A surveybyPewResearchCenterinMarch2020reportedthat88%ofthe487Democrats and Democrat-leaningIndependentsand31%ofthe429RepublicansandRepublican-leaning Independentsconsiderclimatechangeamajorthreat.Softwareshowsthefollowingresultsfor Republicans orthoseleaningthatway: Test ofproportion=0.5vsnot=0.5 n

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Theexamplein Section 5.2.2 could notdeterminewhetheramajorityorminorityofAmericans consider climatechangetobeamajorthreat.However,thisisclearerforparticulargroups.

A surveybyPewResearchCenterinMarch2020reportedthat88%ofthe487Democrats and Democrat-leaningIndependentsand31%ofthe429RepublicansandRepublican-leaning Independentsconsiderclimatechangeamajorthreat.Softwareshowsthefollowingresultsfor Republicans orthoseleaningthatway:

Test ofproportion=0.5vsnot=0.5 n Sampleprop95%CIz-ValueP-Value 429 0.311(0.268,0.355)7.8700.0000 Specifytheparameter and thehypothesestested.Explainhowtointerpretresultsofthetest.

Explain whatwelearnfromtheconfidenceintervalreportedthatwedonotlearnfromthe significance test.

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Foundations Of Statistics For Data Scientists With R And Python

ISBN: 9780367748456

1st Edition

Authors: Alan Agresti

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