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CHAPTER 1 ASSIGNMENT

WHAT IS STATISTICS?

Name ___________________________________ Section __________ Score _________

Part I Classify the following sets of data as qualitative or quantitative.

_______________ 1. The religious affiliations of college students

_______________ 2. The height of each member of a basketball team

_______________ 3. Students scores on the first statistics exam

_______________ 4. The color of new S!s on a car lot

_______________ 5. The "lym#ic track and field world records$ such as the time for the

stee#lechase.

Part II Classify the following sets of data as continuous or discrete.

_______________ 6. The number of students enrolled in an accounting class

_______________ 7. The number of %eneral &lectric microwaves sold by 'ome (e#ot last month

_______________ 8. The acceleration time of an automobile

_______________ 9. The tem#erature of a refrigerator

_______________ 10. The number of #eo#le aboard a commercial air#lane

Part III )dentify the measurement scale as nominal$ ordinal$ interval$ or ratio for each of thefollowing.

_______________ 11. the tem#erature readings in *ashington$ (.C.

_______________ 12. brand of la#to# com#uter

_______________ 13. college ma+or

_______________ 14. military rank

_______________ 15. number of vehicles #roduced

_______________ 16. time required to download a com#uter file

_______________ 17. order of finish in the ,-- )ndiana#olis /-- auto race

_______________ 18. the color of the students hair in your statistics class

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_______________ 19. Scholastic 0#titude Test 1S.0.T.2 scores for incoming freshmen

_______________ 20. number of #eo#le at a board of directors meeting

Part IV Select the correct answer and

write the a##ro#riate letter in the s#ace #rovided.

______ 21. The collection of all #ossible individuals$ ob+ects$ or measurements is called

a. a sam#le.

b. a ratio measurement.c. an inference.d. a #o#ulation

______ 22. Techniques used to organi3e$ summari3e$ and #resent the data that have been collected arecalled

a. #o#ulations.b. sam#les.

c. descri#tive statistics.d. inferential statistics.

______ 23. 4uantitative variables

a always use the interval level of measurement.b always use the ratio level of measurement.c can not have 5ga#s6 between values.d are either discrete or continuous

______ 24. Techniques used to estimate something about a #o#ulation$ based on a sam#le$ are called

a. descri#tive statistics.b. inferential statistics.c. #o#ulations.d. sam#les.

______ 25. *hich of the following is not true of the interval scale7

a. the interval scale is used for ordered datab. equal differences in the characteristic lead to equal differences in the measurementc. the 3ero #oint on the interval scale re#resents the absence of the characteristicmeasuredd

. the interval scale is not used for numeric data

What is Statistics? Chapter 12