Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
group chose
not to repair
the car than
those in the
neutral-state
and anger
state groups.
Identify the
pop- ulation.
A
1. What is the type of data: time length? :
A: N
Qualitative e
B: u
Quantitative t
r
2. The effect of the emotion of guilt on how a a
student focuses on a problem was l
investigated in the Jour- nal of Behavioral -
Decision Making ( January 2007). 155 volunteer s
students as a sample participated in the t
experiment, where each was randomly a
assigned to one of three emotional states t
(guilt, anger, or neu- tral) through a e
reading/writing task. Immediately after the
task, the students were presented with a g
deci- sion problem (e.g., whether or not to r
spend money on repairing a very old car). o
The researchers found that a higher u
proportion of students in the guilty-state p
1/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
B: Guilty-state B: Quantitative
group
C: 155 students who participated in the
experiment D: All students
D: All students
3. A recent survey conducted for the National Association C: Whether or
not a satel-
of Broadcasters investigated satellite radio lite radio subscriber has a
subscriber service and usage. The June 2007 satellite radio receiver
survey, conducted by Wilson Research in his/her car or not
Strategies, consisted of a random sample of
501 satellite radio subscribers. One of the
questions of interest was, "Do you have a
satellite radio receiver in your car?" What is the
variable of interest?
2/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
A: satellite radio
subscriber B: Satellite
radio receiver
C: Whether or not a satellite radio subscriber
has a satellite radio receiver in his/her car or
not
D: How many satellite radio receiver in his/her car
4. A recent survey conducted for the National Association C: Nominal
of Broadcasters investigated satellite radio
subscriber service and usage. The June 2007
survey, conducted by Wilson Research
Strategies, consisted of a random sample of
501 satellite radio subscribers. One of the
questions of interest was, "Do you have a
satellite radio receiver in your car?" What is the
type of data collected from this question?
A: Continuous
B: Discrete
C:
Nominal
D:
Ordinal
5. Is insomnia related to education status? dialing
Researchers at the Universities of Memphis, procedure fo
Alabama at Birming- ham, and Tennessee the interview
investigated this question in the Journal of Two of the
Abnormal Psychology (Feb. 2005). Adults living in many vari-
Tennessee were selected to participate in the ables
study, which used a random-digit telephone measured for
3/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
each of the 575 study participants were number B: A survey
of years of education and insomnia sta- tus
(normal sleeper or chronic insomniac). The
re- searchers discovered that the fewer the
years of edu-
4/
49
Probability & Hypothesis Testing.
group chose
not to repair
the car than
those in the
neutral-state
and anger
state groups.
Identify the
pop- ulation.
A
1. What is the type of data: time length? :
A: N
Qualitative e
B: u
Quantitative t
r
2. The effect of the emotion of guilt on how a a
student focuses on a problem was l
investigated in the Jour- nal of Behavioral -
Decision Making ( January 2007). 155 volunteer s
students as a sample participated in the t
experiment, where each was randomly a
assigned to one of three emotional states t
(guilt, anger, or neu- tral) through a e
reading/writing task. Immediately after the
task, the students were presented with a g
deci- sion problem (e.g., whether or not to r
spend money on repairing a very old car). o
The researchers found that a higher u
proportion of students in the guilty-state p
1/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
B: Guilty-state B: Quantitative
group
C: 155 students who participated in the
experiment D: All students
D: All students
3. A recent survey conducted for the National Association C: Whether or
not a satel-
of Broadcasters investigated satellite radio lite radio subscriber has a
subscriber service and usage. The June 2007 satellite radio receiver
survey, conducted by Wilson Research in his/her car or not
Strategies, consisted of a random sample of
501 satellite radio subscribers. One of the
questions of interest was, "Do you have a
satellite radio receiver in your car?" What is the
variable of interest?
2/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
A: satellite radio
subscriber B: Satellite
radio receiver
C: Whether or not a satellite radio subscriber
has a satellite radio receiver in his/her car or
not
D: How many satellite radio receiver in his/her car
4. A recent survey conducted for the National Association C: Nominal
of Broadcasters investigated satellite radio
subscriber service and usage. The June 2007
survey, conducted by Wilson Research
Strategies, consisted of a random sample of
501 satellite radio subscribers. One of the
questions of interest was, "Do you have a
satellite radio receiver in your car?" What is the
type of data collected from this question?
A: Continuous
B: Discrete
C:
Nominal
D:
Ordinal
5. Is insomnia related to education status? dialing
Researchers at the Universities of Memphis, procedure fo
Alabama at Birming- ham, and Tennessee the interview
investigated this question in the Journal of Two of the
Abnormal Psychology (Feb. 2005). Adults living in many vari-
Tennessee were selected to participate in the ables
study, which used a random-digit telephone measured for
3/
49
, Statistics Exam 1 Study Guide – Descriptive Stats,
Probability & Hypothesis Testing.
each of the 575 study participants were number B: A survey
of years of education and insomnia sta- tus
(normal sleeper or chronic insomniac). The
re- searchers discovered that the fewer the
years of edu-
4/
49
