Question:

Which of the following does not represent one method to obtain primary source data

A.

making observations

B.

sending a survey to customers

C.

looking in journals

D.

conducting an experiment

Answer» c. looking in journals

Question:

If the Pearson correlation co-efficient R is equal to 1 then:

A.

there is a perfect positive relationship between the two variables

B.

there is a positive relationship between the two variables

C.

there is no relationship between the two variables

D.

there is a negative relationship between the two variables

Answer» a. there is a perfect positive relationship between the two variables

Question:

The formula should be independent of the unit in which or for which price and quantitiesare quoted in

A.

unit test

B.

time reversal test

C.

factor reversal test

D.

none of the above

Answer» a. unit test

Question:

Which of the following techniques yields a simple random sample

A.

choosing volunteers from an introductory psychology class to participate

B.

listing the individuals by ethnic group and choosing a proportion from within each ethnic group at random

C.

numbering all the elements of a sampling frame and then using a random number table to pick cases from the table

D.

randomly selecting schools, and then sampling everyone within the school

Answer» c. numbering all the elements of a sampling frame and then using a random number table to pick cases from the table

Question:

Which of the following represents median ?

A.

fiftieth percentile

B.

first quartile

C.

sixth decile

D.

20th percentile

Answer» a. fiftieth percentile