1.13.25 Section1.1Overview ofstatistics
Jaffa
ofinformationcomingfromobservationscountsmeasurements
nsists responses
Statistics the ofcollectingorganizinganalyzingandinterpretingdatatomakedecisions
science
Population the
ofalloutcomesresponsesmeasurementsorcountsthatareofinterest
collection
Parameter numericaldescriptionof population
a a characteristic
Ex.intheu.s.afur.ve ñoñtaÉoo
initiidialsagedisandover
that
meant
Average signal yof a found
ExAverageageoa
f llpeopleintheUnitedStates suchindividuals anaverageof5.19hours
spent dayengagedinleisureand
per
Sample asubsetorpartofapopulation subsetofpofationskmtpiedsfatst.ES
Statistics
anumericaldescriptionofasamplecharacteristic
Averagemean x̅
ExAverageageofpeoplefromasampleofthreestates
ExInarecentsurveyF3Ye
miloyeesintheu.se
askedifthey
were jobswerestressfulOfthe
there
t hought 834respondents517 the
yesIdentifythepopulationand
said
sub's
sampleDescribe dataset e responses
the.gg
Branches statistics
of
statistics involves
Descriptive theorganizationsummerizationanddisplayofdata
egtableschartsaverages
nferential
statisticsinvolves
using datatodrawconclusionsaboutapopulation
s ample
117125 Section 1.2DataClassification
dataobservationaldata
Qualitative
amni.it
iiiiii i i
of data
intervallevel measure quantitative
19hihin.ttaimmita yauantativedata
canbeorded
categorized nameslabelsor
using qualities differences
bwdataentriesaremeaningful
m
rat.fiiiofmisu're'min aisqusa'ffgqqesnotimply.name
level
Ordinal ofmeasurement canbequalitativeorquantitativedata
bearrangedinorderorranked
can zeroimpliesnone
differences
bwdataentriesisnotmeaningful aratiooftwodatapointscanbeformed
data
one canbeexpressedasamultipleof
value another
canbeordered
ummary ofFourLevelsofMeasurement
inputat Arirang suptargtsdatadgtearmmyffeofqgtq.gg'ue
Levelsofmeasurement es
Nominal Yes No
Ordinal
interval
Yes
Yes
Yes
µ
Yes Yes
Eatio Yes
Yes yes
N.O.IR
Jaffa
ofinformationcomingfromobservationscountsmeasurements
nsists responses
Statistics the ofcollectingorganizinganalyzingandinterpretingdatatomakedecisions
science
Population the
ofalloutcomesresponsesmeasurementsorcountsthatareofinterest
collection
Parameter numericaldescriptionof population
a a characteristic
Ex.intheu.s.afur.ve ñoñtaÉoo
initiidialsagedisandover
that
meant
Average signal yof a found
ExAverageageoa
f llpeopleintheUnitedStates suchindividuals anaverageof5.19hours
spent dayengagedinleisureand
per
Sample asubsetorpartofapopulation subsetofpofationskmtpiedsfatst.ES
Statistics
anumericaldescriptionofasamplecharacteristic
Averagemean x̅
ExAverageageofpeoplefromasampleofthreestates
ExInarecentsurveyF3Ye
miloyeesintheu.se
askedifthey
were jobswerestressfulOfthe
there
t hought 834respondents517 the
yesIdentifythepopulationand
said
sub's
sampleDescribe dataset e responses
the.gg
Branches statistics
of
statistics involves
Descriptive theorganizationsummerizationanddisplayofdata
egtableschartsaverages
nferential
statisticsinvolves
using datatodrawconclusionsaboutapopulation
s ample
117125 Section 1.2DataClassification
dataobservationaldata
Qualitative
amni.it
iiiiii i i
of data
intervallevel measure quantitative
19hihin.ttaimmita yauantativedata
canbeorded
categorized nameslabelsor
using qualities differences
bwdataentriesaremeaningful
m
rat.fiiiofmisu're'min aisqusa'ffgqqesnotimply.name
level
Ordinal ofmeasurement canbequalitativeorquantitativedata
bearrangedinorderorranked
can zeroimpliesnone
differences
bwdataentriesisnotmeaningful aratiooftwodatapointscanbeformed
data
one canbeexpressedasamultipleof
value another
canbeordered
ummary ofFourLevelsofMeasurement
inputat Arirang suptargtsdatadgtearmmyffeofqgtq.gg'ue
Levelsofmeasurement es
Nominal Yes No
Ordinal
interval
Yes
Yes
Yes
µ
Yes Yes
Eatio Yes
Yes yes
N.O.IR
