Statistical Techniques in Business and Economics, 19th EditionTestbankandSolutionsbyDouglasA.Lind,William(Q and A)

Statistical Techniques in Business and Economics,
19th
EditionTestbankandSolutionsbyDouglasA.Lind,Willia
m(Q and A)

,NOTE:AllChaptersAvailableviaEmailOnlyAt:


Chapter0219eLind
1) Afrequencydistributionisagroupingofquantitativedataintooverlappingclassesshowing the
number of observations in each class.
⊚true
⊚false



2) Afrequencytableforqualitativedatahasclasslimits.
⊚true
⊚false



3) Tosummarizethemajorsofstudentsattendingacollege,thenumberofclassesina
frequency table depends on the number of students.
⊚true
⊚false



4) Infrequencydistributions,classesaremutuallyexclusiveifeachindividual,object,or
measurement is included in only one category.
⊚true
⊚false



5) Inabarchart,thehorizontalaxisisusuallylabeledwiththeclassesofaqualitative variable.
⊚true
⊚false



6) Inabarchart,theheightsofthebarsrepresentthefrequenciesineach class.
⊚true
⊚false




Version1 1

,NOTE:AllChaptersAvailableviaEmailOnlyAt:


7) Themidpoint ofaclassishalfwaybetweenthelowerandupperlimits.
⊚true
⊚false



8) Aclassintervalcanbedeterminedbysubtractingthelowerlimitofaclassfromthelower limit of
the next higher class.
⊚true
⊚false



9) Toconvertafrequencydistributiontoarelativefrequencydistribution,divideeachclass
frequency by the sum of the class frequencies.
⊚true
⊚false



10) Toconvertafrequencydistributiontoarelativefrequencydistribution,divideeachclass
frequency by the number of classes.
⊚true
⊚false



11) Apiechartissimilartoarelativefrequency distribution.
⊚true
⊚false



12) Apiechartshowstherelativefrequencyineach class.
⊚true
⊚false



13) Toconstructapiechart,relativeclassfrequenciesareusedtographthe"slices"ofthe pie.
⊚true
⊚false




Version1 2

, NOTE:AllChaptersAvailableviaEmailOnlyAt:


14) Acumulativefrequencydistributionisusedwhenwewanttodeterminehowmany
observations lie above or below certain values.
⊚true
⊚false



15) Afrequencypolygonisaveryusefulgraphictechniquewhencomparingtwoormore
distributions.
⊚true
⊚false



16) Acumulativefrequencypolygonusestheclassmidpointsforthecoordinatesonthe
horizontal axis.
⊚true
⊚false



17) Histogramsareusedtographicallyrepresentqualitative data.
⊚true
⊚false



18) Frequency polygons depict the data from a frequency distribution using the class midpoints
forthehorizontalaxiscoordinatesandtheclassfrequenciesfortheverticalaxiscoordinates.
⊚true
⊚false



19) Afrequencytableshowingacountofemployeesbygeographicregionshouldalsoincludea
cumulative frequency.
⊚true
⊚false




Version1 3