Intro to Stats

Name.

MULTIPLE C H O I C E . Choose the one alternative that best completes the statement or answers the question.

Solve the problem. 1) The chances of winning the California Lottery are one chance in twenty-two mil l ion. Does this 1)

statement describe:

A) inferential statistics? B) descriptive statistics?

2) From past figures, it is predicted that 39% of the registered voters in California w i l l vote in the June 2) primary. Does this statement describe:

A) descriptive statistics? , B) inferential statistics?

3) There is a relationship between smoking cigarettes and getting emphysema. Does this statement 3) describe:

A) inferential statistics? B) descriptive statistics?

4) The average age of the students in a statistics class is 22 years. Does this statement describe: 4)

A) descriptive statistics? B) inferential statistics?

5) Classify the numbers on the shirts of a girl's soccer team as qualitative data or quantitative data. 5)

A) qualitative data B) quantitative data

6) Identify the level of measurement of the data listed on the horizontal axis in the graph. 6)

Internet Usage

q 2 4 -b5 2 0 -

16 -12 -

^ 8 -

13 25 37 48

Minutes online

73 85

A) ratio B) ordinal C) nominal D) interval

7) Identify the level of measurement for data that are the final grades (A, B, C, D, and F) for students 7) in a statistics class.

A) ordinal B) interval C) ratio D) nominal

8) Identify the level of measurement for data that are the ages of students in a statistic class.

A) ordinal B) interval C) nominal D) ratio

8)

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9) Identify the level of measurement for data that are the annual salaries for all teachers in California. 9)

A) interval B) nominal C) ordinal D) ratio

10) Identify the level of measurement for data that are the nationalities listed in a recent survey (for 10) example, Asian, European, or Hispanic).

A) nominal B) ratio ,. C) ordinal D) interval

11) Classify the colors of automobiles on a used car lot as qualitative data or quantitative data. 11)

A) qualitative data ^ . • B) quantitative data

12) A market researcher randomly selects 200 drivers under 35 years of age and 100 drivers over 35 12) years of age. What sampling technique was used?

A) cluster

B) random l C) systematic

D) convenience

E) stratified

13) A researcher randomly selects and interviews f i f ty male and fif ty female teachers. What sampling 13) technique is used?

A) stratified

B) convenience

C) cluster

D) random

E) systematic

14) Based on previous clients, a marriage counselor concludes that the majority of marriages that begin 14) wi th cohabitation before marriage w i l l result i n divorce. Does this statement describe inferential statistics or descriptive statistics?

A) inferential statistics B) descriptive statistics

15) What method of data collection would you use to collect data for a study where you w o u l d like to 15) determine the chance getting three girls in a family of three children?

A) use sampling B) perform an experiment

C) take a census D) use a simulation

16) To avoid working late, the quality control manager inspects the last 10 items produced that day. 16) What sampling technique was used?

A) convenience

B) cluster

C) systematic

D) random

E) stratified

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17) Based on 12,500 responses from 42,000 questionnaires sent to its alumni, a major university 17) estimated that the annual salary of its alumni was $96,500 per year. What sampling technique is used?

A) convenience

B) random

C) systematic ^ •<

D) stratified ,

E) cluster ^

18) Identify the level of measurement for data that are the years the summer Olympics were held in the 18) United States.

A) ratio B) ordinal C) interval D) nominal

19) Identify the level of measurement for data that are the ratings of a movie ranging from poor to 19) good to excellent.

A) ordinal B) ratio C) interval D) nominal

20) A community college student interviews everyone in a statistics class to determine who owns a car. 20) What sampling technique is used?

A) cluster

B) random

C) stratified

D) systematic

E) convenience

21) Identify the level of measurement for data that are the temperature of 22 refrigerators. 21)

A) ratio B) interval C) ordinal D) nominal

22) At a local community college, five statistics classes are randomly selected and all of the students 22) from each class are interviewed. What sampling technique is used?

A) cluster

B) stratified

C) convenience

D) systematic

E) random

23) The average daily temperatures (in degrees Fahrenheit) on five randomly selected days are given 23) below. Identify the level of measurement.

21 32 30 28 31

A) nominal B) ordinal C) interval D) ratio

24) To ensure customer satisfaction, every 35th phone call received by customer service w i l l be monitored. What sampling technique was used?

A) cluster

B) stratified

C) systematic

D) convenience > "

E) random

24)

25) Based on previous clients, a marriage counselor concludes that the majority of marriages that begin w i t h cohabitation before marriage w i l l result in divorce. Does this statement describe inferential statistics or descriptive statistics?

25)

A) inferential statistics ' B) descriptive statistics

26) Identify the level of measurement of the data listed on the horizontal axis in the graph.

Five Top-Selling Vehicles in January 2004

26)

70 n •a CO

^ 60 50 40 30 20 10

3 O

c

o to CO

o

>

62

o <u

41

28

I I

31 26

° "5.

A) ordinal B) nominal C) interval D) ratio

27) What method of data collection would you use to collect data for a study where a political pollster 27) wishes to determine if his candidate is leading i n the polls?

A) use a simulation B) use sampling

C) take a census D) perform an experiment

28) Every fifth teenager entering a concert is checked for possession of drugs. What sampling 28) technique is used?

A) conveiuence

B) cluster

C) stratified

D) random

E) systematic

29) Identify the level of measurement for data that can be classified by marriage status (married, single, 29) or divorced.) \

A) interval B) ratio C) nominal D) ordinal

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30) What method of data collection would you use to collect data for a study where a drug was given 30) to 57 patients and a placebo to another group of 57 patients to determine if the drug has an effect on a patient's illness?

A) use a simulation B) take a census

C) use sampling D) perform an experiment

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