Test Bank for Statistics for the
Behavioral Sciences, 6th Edition by
Susan Nolan
A researcher is interested in the sleeping habits of American college students. A group of 50
students is interviewed and the researcher finds that these students sleep an average of 6.7
hours per day. For this study, the average of 6.7 hours is an
example of a(n) ________________.
a. parameter
b. statistic
c. population
d. sample - answer-B
A researcher is curious about the average IQ of registered voters in the state of Florida. The
entire group of registered voters in the state is an example of a ___________.
a. sample
b. statistic
c. population
d. parameter - answer-C
Statistical techniques that summarize, organize, and simplify data are classified as
______________.
a. population statistics
b. sample statistics
1
, c. descriptive statistics
d. inferential statistics - answer-C
In general, ________statistical techniques are used to summarize the data from
a research study and _________statistical techniques are used to determine what conclusions
are justified by the results.
a. inferential, descriptive
b. descriptive, inferential
c. sample, population
d. population, sample - answer-B
IQ tests are standardized so that the average score is 100 for the entire group of people who
take the test each year. However, if you selected a group of 20 people who took the test and
computed their average IQ score you probably would not get 100. What statistical concept
explains the difference between your mean and the mean for the entire group?
a. statistical error
b. inferential error
c. descriptive error
d. sampling error - answer-D
In a correlational study, how many variables are measured for each individual and how many
groups of scores are obtained?
a. 1 variable and 1 group
b. 1 variable and 2 groups
c. 2 variables and 1 group
d. 2 variables and 2 groups - answer-C
2
Behavioral Sciences, 6th Edition by
Susan Nolan
A researcher is interested in the sleeping habits of American college students. A group of 50
students is interviewed and the researcher finds that these students sleep an average of 6.7
hours per day. For this study, the average of 6.7 hours is an
example of a(n) ________________.
a. parameter
b. statistic
c. population
d. sample - answer-B
A researcher is curious about the average IQ of registered voters in the state of Florida. The
entire group of registered voters in the state is an example of a ___________.
a. sample
b. statistic
c. population
d. parameter - answer-C
Statistical techniques that summarize, organize, and simplify data are classified as
______________.
a. population statistics
b. sample statistics
1
, c. descriptive statistics
d. inferential statistics - answer-C
In general, ________statistical techniques are used to summarize the data from
a research study and _________statistical techniques are used to determine what conclusions
are justified by the results.
a. inferential, descriptive
b. descriptive, inferential
c. sample, population
d. population, sample - answer-B
IQ tests are standardized so that the average score is 100 for the entire group of people who
take the test each year. However, if you selected a group of 20 people who took the test and
computed their average IQ score you probably would not get 100. What statistical concept
explains the difference between your mean and the mean for the entire group?
a. statistical error
b. inferential error
c. descriptive error
d. sampling error - answer-D
In a correlational study, how many variables are measured for each individual and how many
groups of scores are obtained?
a. 1 variable and 1 group
b. 1 variable and 2 groups
c. 2 variables and 1 group
d. 2 variables and 2 groups - answer-C
2
