《行为科学统计精要，8e》 PPT gwE8Ch01.pptxVIP

Chapter1:

IntroductiontoStatistics

PowerPointLectureSlides

EssentialsofStatisticsfortheBehavioralSciences

EighthEdition

byFrederickJGravetterandLarryB.Wallnau

·Knowtheplaceofstatisticsinscience

·Understandsummationnotation

01LearningOutcomes

Chapter

MathSkillsAssessment

Chapter

·Statisticsrequiresbasicmathskills

·Inadequatebasicmathskillsputsyouatriskinthiscourse

·AppendixAMathSkillsAssessmenthelpsyoudetermineifyouneedaskillsreview

·AppendixAMathSkillsReviewprovidesaquickrefreshercourseonthoseareas.

·ThefinalMathSkillsAssessmentidentifiesyourbasicmathskillscompetence

1.1Statistics,Scienceand

Observations Chapter

·“Statistics”meansstatisticalprocedures”

·UsesofStatistics

-Organizeandsummarizeinformation

-Determineexactlywhatconclusionsarejustifiedbasedontheresultsthatwereobtained

·Goalsofstatisticalprocedures

-Accurateandmeaningfulinterpretation

-Providestandardizedevaluationprocedures

r1.2PopulationsandSamples

·Population

-Thesetofalltheindividualsofinterestinaparticularstudy

-Varyinsize;oftenquitelarge

·Sample

-Asetofindividualsselectedfromapopulation

-Usuallyintendedtorepresentthepopulationinaresearchstudy

Theresults

fromthesample

aregeneralized

tothepopulation

THESAMPLE

Figure1.1

Relationshipbetweenpopulationandsample

THEPOPULATION

Alloftheindividualsofinterest

Theindividualsselectedparticipateintheresearch

Thesample

isselectedfrom

thepopulation

to

study

·Variable

-Characteristicorconditionthatchangesorhasdifferentvaluesfordifferentindividuals

·Data(plural)

-Measurementsorobservationsofavariable

·Dataset

-Acollectionofmeasurementsorobservations

·Adatum(singular)

-Asinglemeasurementorobservation

-Commonlycalled