Statistical Methods for the Social Sciences Final Exam –
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A descriptive statistic is generally defined as:
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
B. Using data to make general estimates about the overall group of interests
C. The entire group of interest about which we want to make conclusions
D. A subset, or smaller collection, of observations from the overall group of interest - ANSWER
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
Inferential statistics allows researchers to:
A. Summarize data observations for a sample
B. Summarize numerical observations for a population
C. Make inferences about a sample of interest given observations taken on a larger population
D. Make inferences about a population of interest given observations taken on a smaller sample
- ANSWER D. Make inferences about a population of interest given observations taken on a
smaller sample
A medical researcher interested in asthma symptoms wanted to know how symptoms were
affected in dry vs. humid conditions. The researchers recruited 18 asthma patients to spend four
weeks under two conditions: 1) sleeping with a dehumidifier for two weeks to create a "dry"
environment and 2) sleeping with a humidifier for the remaining two weeks to create a "humid"
environment. Patients were asked to rate their symptoms at regular intervals using a scale from
"0=No symptoms" to "20=Maximum asthma symptoms." The change in asthma symptoms from
dry to humid conditions was mean 5.82, showing a reduction of symptoms in humid conditions.
What was the descriptive statistic in this study?
,A. Eighteen asthma patients
B. Four weeks, with two under each condition
C. The two sleeping conditions: 1) dry, 2) humid
D. Mean change in responses on the scale of 5.82 on average - ANSWER D. Mean change in
responses on the scale of 5.82 on average
Hsee and Tang (2007) reported the results of a study?????? happiness scale (from 1 to 7) just
before taking a midterm exam. On this scale, 1 corresponded to very unhappy and 7 to very
happy. On average, the students rated their happiness as a 6.18. In this study, which of these
would require an inferential statistic?
A. The average rating of happiness at 6.18
B. The conclusion that college students, on average, are rather happy prior to taking midterm
exams.
C. The 195 college students who completed the happiness scale
D. The conclusion that these 195 college students are rather happy prior to taking this midterm
exam - ANSWER B. The conclusion that college students, on average, are rather happy prior to
taking midterm exams.
A sample is generally defined as:
A. The entire group of interest about which we want to make conclusions
B. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
C. A subset, or smaller collection, of observations from the overall group of interest
D. Using data to make general estimates about the overall group of interest - ANSWER C. A
subset, or smaller collection, of observations from the overall group of interest
A population is generally defined as:
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
, B. Using data to make general estimates about the overall group of interest
C. The entire group of interest about which we want to make conclusions
D. A subset, or smaller collection, of observations from the overall group of interest - ANSWER
C. The entire group of interest about which we want to make conclusions
Why do researchers typically study samples rather than populations?
A. Entire populations are too variable to study
B. Samples are more representative than their respective populations
C. Results obtained from a sample are more accurate than results based on a population
D. Entire populations can be too costly to study or impossible to access - ANSWER D. Entire
populations can be too costly to study or impossible to access
The statement, "100 college-aged students participated in a study examining the relationship
between gender and depression," is an example of a(n) ________________________
A. Population
B. Sample
C. Inferential statistic
D. Descriptive statistic - ANSWER B. Sample
Variables are:
A. The value, attitudinal, or behavioral characteristics for a given individual
B. Specific values (in whole numbers) that represent an individual's category membership
C. Hypothetical ideas that have been developed to describe and explain human behavior
D. Observations of physical, attitudinal, or behavioral characteristics that can take on different
values - ANSWER D. Observations of physical, attitudinal, or behavioral characteristics that can
take on different values
Questions & 100% Correct Answers- 100% Verified
Answers , Guaranteed Pass!
A descriptive statistic is generally defined as:
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
B. Using data to make general estimates about the overall group of interests
C. The entire group of interest about which we want to make conclusions
D. A subset, or smaller collection, of observations from the overall group of interest - ANSWER
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
Inferential statistics allows researchers to:
A. Summarize data observations for a sample
B. Summarize numerical observations for a population
C. Make inferences about a sample of interest given observations taken on a larger population
D. Make inferences about a population of interest given observations taken on a smaller sample
- ANSWER D. Make inferences about a population of interest given observations taken on a
smaller sample
A medical researcher interested in asthma symptoms wanted to know how symptoms were
affected in dry vs. humid conditions. The researchers recruited 18 asthma patients to spend four
weeks under two conditions: 1) sleeping with a dehumidifier for two weeks to create a "dry"
environment and 2) sleeping with a humidifier for the remaining two weeks to create a "humid"
environment. Patients were asked to rate their symptoms at regular intervals using a scale from
"0=No symptoms" to "20=Maximum asthma symptoms." The change in asthma symptoms from
dry to humid conditions was mean 5.82, showing a reduction of symptoms in humid conditions.
What was the descriptive statistic in this study?
,A. Eighteen asthma patients
B. Four weeks, with two under each condition
C. The two sleeping conditions: 1) dry, 2) humid
D. Mean change in responses on the scale of 5.82 on average - ANSWER D. Mean change in
responses on the scale of 5.82 on average
Hsee and Tang (2007) reported the results of a study?????? happiness scale (from 1 to 7) just
before taking a midterm exam. On this scale, 1 corresponded to very unhappy and 7 to very
happy. On average, the students rated their happiness as a 6.18. In this study, which of these
would require an inferential statistic?
A. The average rating of happiness at 6.18
B. The conclusion that college students, on average, are rather happy prior to taking midterm
exams.
C. The 195 college students who completed the happiness scale
D. The conclusion that these 195 college students are rather happy prior to taking this midterm
exam - ANSWER B. The conclusion that college students, on average, are rather happy prior to
taking midterm exams.
A sample is generally defined as:
A. The entire group of interest about which we want to make conclusions
B. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
C. A subset, or smaller collection, of observations from the overall group of interest
D. Using data to make general estimates about the overall group of interest - ANSWER C. A
subset, or smaller collection, of observations from the overall group of interest
A population is generally defined as:
A. A single number or group of numbers that organize, summarize, and communicate a group of
numerical observations
, B. Using data to make general estimates about the overall group of interest
C. The entire group of interest about which we want to make conclusions
D. A subset, or smaller collection, of observations from the overall group of interest - ANSWER
C. The entire group of interest about which we want to make conclusions
Why do researchers typically study samples rather than populations?
A. Entire populations are too variable to study
B. Samples are more representative than their respective populations
C. Results obtained from a sample are more accurate than results based on a population
D. Entire populations can be too costly to study or impossible to access - ANSWER D. Entire
populations can be too costly to study or impossible to access
The statement, "100 college-aged students participated in a study examining the relationship
between gender and depression," is an example of a(n) ________________________
A. Population
B. Sample
C. Inferential statistic
D. Descriptive statistic - ANSWER B. Sample
Variables are:
A. The value, attitudinal, or behavioral characteristics for a given individual
B. Specific values (in whole numbers) that represent an individual's category membership
C. Hypothetical ideas that have been developed to describe and explain human behavior
D. Observations of physical, attitudinal, or behavioral characteristics that can take on different
values - ANSWER D. Observations of physical, attitudinal, or behavioral characteristics that can
take on different values
