STATS 202 FINAL EXAM WITH
ACCURATE SOLUTIONS
a t_______ tdescribes tan tindividual tby tplacing tthe tindividual tinto ta tcategory tor tgroup,
tsuch tas tmale tor tfemale t- tcorrect tanswers t-qualitative tvariable
a t_____ tis ta tquantitative tvariable tthat thas teither ta tfinite tnumber tof tpossible tvalues
tor ta tcountable tnumber tof tpossible tvalues t- tcorrect tanswers t-discrete tvariable
a t_____ tis ta tquantitative tvariable tthat thas tan tinfinite tnumber tof tpossible tvalues tthat
tare tnot tcountable t- tcorrect tanswers t-continuous tvariable
a t_____ tis tan texplanatory tvariable tthat twas tnot tconsidered tin tstudy, tbut tthat taffect
tthe tvalue tof tthe tresponse tvariable tin tthe tstudy t- tcorrect tanswers t-lurking tvariable
a t____ tis tone tobtained tby tseparating tthe tpopulation tinto thomogeneous, tnon-
overlapping tgroups tcalled tstrata, tand tthen tobtaining ta tsimple trandom tsample tfrom
teach tstratum t- tcorrect tanswers t-stratified tsample
, a t_____ tis tobtained tby tselecting tevery tkth tindividual tfrom tthe tpopulation t- tcorrect
tanswers t-systematic tsample
a t____ texperiment tis tone tin twhich tthe texperimental tunit t(or tsubject) tdoes tnot tknow
twhich ttreatment the tor tshe tis treceiving t- tcorrect tanswers t-single-blind
a t_____ texperiment tis tone tin twhich tneither tthe texperimental tunit tnor tthe tresearcher
tin tcontact twith tthe texperimental tunit tknows twhich ttreatment tthe texperimental tunit tis
treceiving t- tcorrect tanswers t-double-blind
the thighest tfrequency toccurs tin tthe tmiddle tand tfrequencies ttail toff tto tthe tleft tand
tright tof tthe tmiddle tis tcalled t- tcorrect tanswers t-bell-shaped tdistribution
if tthe ttail tto tthe tleft tof tthe tpeak tis tlonger tthan tthe ttail tto tthe tright tof tthe tpeak tthen
tthe tdata tis tconsidered t- tcorrect tanswers t-skewed tleft
the tbank taccount tnumbers tof tthe tstudents tin ta tclass
a. tqualitative t
b. tquantitative t- tcorrect tanswers t-a. tqualitative
the tweights tof tcases tloaded tonto tan tairport tconveyor tbelt t
a. tqualitative t
b. tquantitative t- tcorrect tanswers t-b. tquantitative
the tnumber tof tbottles tof tjuice tsold tin ta tcafeteria tduring tlunch t
a. tdiscrete t
b. tcontinuous t- tcorrect tanswers t-a. tdiscrete
the tweight tof ta tplayer ton tthe twrestling tteam t
a. tdiscrete t
b. tcontinuous t- tcorrect tanswers t-b. tcontinuous
the tpersonnel tdirector tat ta tlarge tcompany twould tdetermine twhether tthe tcompany
tcafeteria tis twidely tused tby temployees. tshe tcalls teach temployee tand tasks tthem
twhether tthey tusually tbring ttheir town tlunch, teat tat tthe tcompany tcafeteria, tor tgo tout
tfor tlunch t
a. tobservational tstudy t
b. texperiment t- tcorrect tanswers t-a. tobservational tstudy
a tscientist twas tstudying tthe teffects tof ta tnew tfertilizer ton tcrop tyield. tshe trandomly
tassigned thalf tof tthe tplots ton ta tfarm tto tgroup tone tand tthe tremaining tplots tto tgroup
ttwo. ton tthe tplots tin tgroup tone, tthe tnew tfertilizer twas tused tfor ta tyear. ton tthe tplots
tin tgroup ttwo, tthe told tfertilizer twas tused. tat tthe tend tof tthe tyear, tthe taverage tcrop
tyield tfor tthe tplots tin tgroup tone twas tcompared twith taverage tcrop tyield tfor tthe tplots
tin tgroup ttwo t
a. tobservational tstudy t
ACCURATE SOLUTIONS
a t_______ tdescribes tan tindividual tby tplacing tthe tindividual tinto ta tcategory tor tgroup,
tsuch tas tmale tor tfemale t- tcorrect tanswers t-qualitative tvariable
a t_____ tis ta tquantitative tvariable tthat thas teither ta tfinite tnumber tof tpossible tvalues
tor ta tcountable tnumber tof tpossible tvalues t- tcorrect tanswers t-discrete tvariable
a t_____ tis ta tquantitative tvariable tthat thas tan tinfinite tnumber tof tpossible tvalues tthat
tare tnot tcountable t- tcorrect tanswers t-continuous tvariable
a t_____ tis tan texplanatory tvariable tthat twas tnot tconsidered tin tstudy, tbut tthat taffect
tthe tvalue tof tthe tresponse tvariable tin tthe tstudy t- tcorrect tanswers t-lurking tvariable
a t____ tis tone tobtained tby tseparating tthe tpopulation tinto thomogeneous, tnon-
overlapping tgroups tcalled tstrata, tand tthen tobtaining ta tsimple trandom tsample tfrom
teach tstratum t- tcorrect tanswers t-stratified tsample
, a t_____ tis tobtained tby tselecting tevery tkth tindividual tfrom tthe tpopulation t- tcorrect
tanswers t-systematic tsample
a t____ texperiment tis tone tin twhich tthe texperimental tunit t(or tsubject) tdoes tnot tknow
twhich ttreatment the tor tshe tis treceiving t- tcorrect tanswers t-single-blind
a t_____ texperiment tis tone tin twhich tneither tthe texperimental tunit tnor tthe tresearcher
tin tcontact twith tthe texperimental tunit tknows twhich ttreatment tthe texperimental tunit tis
treceiving t- tcorrect tanswers t-double-blind
the thighest tfrequency toccurs tin tthe tmiddle tand tfrequencies ttail toff tto tthe tleft tand
tright tof tthe tmiddle tis tcalled t- tcorrect tanswers t-bell-shaped tdistribution
if tthe ttail tto tthe tleft tof tthe tpeak tis tlonger tthan tthe ttail tto tthe tright tof tthe tpeak tthen
tthe tdata tis tconsidered t- tcorrect tanswers t-skewed tleft
the tbank taccount tnumbers tof tthe tstudents tin ta tclass
a. tqualitative t
b. tquantitative t- tcorrect tanswers t-a. tqualitative
the tweights tof tcases tloaded tonto tan tairport tconveyor tbelt t
a. tqualitative t
b. tquantitative t- tcorrect tanswers t-b. tquantitative
the tnumber tof tbottles tof tjuice tsold tin ta tcafeteria tduring tlunch t
a. tdiscrete t
b. tcontinuous t- tcorrect tanswers t-a. tdiscrete
the tweight tof ta tplayer ton tthe twrestling tteam t
a. tdiscrete t
b. tcontinuous t- tcorrect tanswers t-b. tcontinuous
the tpersonnel tdirector tat ta tlarge tcompany twould tdetermine twhether tthe tcompany
tcafeteria tis twidely tused tby temployees. tshe tcalls teach temployee tand tasks tthem
twhether tthey tusually tbring ttheir town tlunch, teat tat tthe tcompany tcafeteria, tor tgo tout
tfor tlunch t
a. tobservational tstudy t
b. texperiment t- tcorrect tanswers t-a. tobservational tstudy
a tscientist twas tstudying tthe teffects tof ta tnew tfertilizer ton tcrop tyield. tshe trandomly
tassigned thalf tof tthe tplots ton ta tfarm tto tgroup tone tand tthe tremaining tplots tto tgroup
ttwo. ton tthe tplots tin tgroup tone, tthe tnew tfertilizer twas tused tfor ta tyear. ton tthe tplots
tin tgroup ttwo, tthe told tfertilizer twas tused. tat tthe tend tof tthe tyear, tthe taverage tcrop
tyield tfor tthe tplots tin tgroup tone twas tcompared twith taverage tcrop tyield tfor tthe tplots
tin tgroup ttwo t
a. tobservational tstudy t
