STATS EXAM 1 QUESTIONS AND ANSWERS
making judgements and decisions about complex phenomenon - Answers- statistics
records gathered by conducting research such as surveys, interviews, content analysis,
or experiments - Answers- data
the level at which you analyze the data
ex. individuals, households, school, cities, countries, etc. - Answers- unit of analysis
A researcher wants to know whether having a job lowers one's GPA among UT-Austin
students and have collected survey data for this question. What is the unit of analysis?*
- Answers- UT-Austin Students
A Longhorn football fan wants to know the average points scored in all Longhorn
football games. What is the unit of analysis?* - Answers- Longhorn Football games
include (almost) every unit of interest for a study - Answers- population data
include only a subset of the population of interest - Answers- sample data
gives less accurate information but cheaper and thus more common - Answers- sample
data
A researcher is interested in college women's satisfaction with their romantic
relationships. The population is?* - Answers- college women
A researcher is interested in the number of hours of television watched by 5 year olds in
the U.S. The population is?* - Answers- 5 year olds in the U.S.
statistic that describes the sample or population data - Answers- descriptive statistics
statistics that uses sample data to make inferences about the population - Answers-
inferential statistics
There are 24 female and 8 male students in my previous class. The male/female sex
ratio in this class is 0.333. Is this descriptive or inferential statistics?* - Answers-
descriptive statistics
gives the most accurate information about the population but are rare, very expensive to
collect - Answers- population data
A sociologist wants to study the exercise frequency of UT undergraduate students.
What is their population of interest and should they collect population or sample data?* -
Answers- UT undergraduate students + sample data
, I want to understand how my students in this class feel about statistics. What is their
population of interest and should they collect population or sample data?* - Answers-
students in this class + population data
There are 11 female and 15 male students in a different requirement class. Based on
this sample, I guess the male/female sex ratio among sociology majors at UT is about
1.364. Is this descriptive or inferential statistics? - Answers- inferential statistics
characteristics that vary across the units of analysis in a sample or population -
Answers- variables
3 levels of measurement - Answers- nominal/categorical + ordinal + interval/ratio
categories with no inherent order
Ex. What is your eye color/favorite beverage/hometown? - Answers-
nominal/categorical
categories with ordered values but undefined distances between each value
Ex. How much do you like pizza? A lot, not much, or hate it?
What is the size of your T-shirt? Large, medium, or small? - Answers- ordinal
numeric values with specific numerical distances (intervals) between them
Ex. What time do you wake up in the morning?
How long did it take to read the first chapter? - Answers- interval/ratio
How often do you check your email?1.Very Often
2. Sometimes
3. Rarely
4.Never
The level of measurement is:* - Answers- ordinal
What is your favorite color?
1.Red
2.Blue
3.Green
4.Other
The level of measurement is:* - Answers- nominal/categorical
How many course credits have you earned at UT?
The level of measurement: ____________* - Answers- interval/ratio
Have you ever had beer?
The level of measurement: ____________* - Answers- nominal/categorical
making judgements and decisions about complex phenomenon - Answers- statistics
records gathered by conducting research such as surveys, interviews, content analysis,
or experiments - Answers- data
the level at which you analyze the data
ex. individuals, households, school, cities, countries, etc. - Answers- unit of analysis
A researcher wants to know whether having a job lowers one's GPA among UT-Austin
students and have collected survey data for this question. What is the unit of analysis?*
- Answers- UT-Austin Students
A Longhorn football fan wants to know the average points scored in all Longhorn
football games. What is the unit of analysis?* - Answers- Longhorn Football games
include (almost) every unit of interest for a study - Answers- population data
include only a subset of the population of interest - Answers- sample data
gives less accurate information but cheaper and thus more common - Answers- sample
data
A researcher is interested in college women's satisfaction with their romantic
relationships. The population is?* - Answers- college women
A researcher is interested in the number of hours of television watched by 5 year olds in
the U.S. The population is?* - Answers- 5 year olds in the U.S.
statistic that describes the sample or population data - Answers- descriptive statistics
statistics that uses sample data to make inferences about the population - Answers-
inferential statistics
There are 24 female and 8 male students in my previous class. The male/female sex
ratio in this class is 0.333. Is this descriptive or inferential statistics?* - Answers-
descriptive statistics
gives the most accurate information about the population but are rare, very expensive to
collect - Answers- population data
A sociologist wants to study the exercise frequency of UT undergraduate students.
What is their population of interest and should they collect population or sample data?* -
Answers- UT undergraduate students + sample data
, I want to understand how my students in this class feel about statistics. What is their
population of interest and should they collect population or sample data?* - Answers-
students in this class + population data
There are 11 female and 15 male students in a different requirement class. Based on
this sample, I guess the male/female sex ratio among sociology majors at UT is about
1.364. Is this descriptive or inferential statistics? - Answers- inferential statistics
characteristics that vary across the units of analysis in a sample or population -
Answers- variables
3 levels of measurement - Answers- nominal/categorical + ordinal + interval/ratio
categories with no inherent order
Ex. What is your eye color/favorite beverage/hometown? - Answers-
nominal/categorical
categories with ordered values but undefined distances between each value
Ex. How much do you like pizza? A lot, not much, or hate it?
What is the size of your T-shirt? Large, medium, or small? - Answers- ordinal
numeric values with specific numerical distances (intervals) between them
Ex. What time do you wake up in the morning?
How long did it take to read the first chapter? - Answers- interval/ratio
How often do you check your email?1.Very Often
2. Sometimes
3. Rarely
4.Never
The level of measurement is:* - Answers- ordinal
What is your favorite color?
1.Red
2.Blue
3.Green
4.Other
The level of measurement is:* - Answers- nominal/categorical
How many course credits have you earned at UT?
The level of measurement: ____________* - Answers- interval/ratio
Have you ever had beer?
The level of measurement: ____________* - Answers- nominal/categorical
