STAT 206 final exam multiple choice questions
Population - correct answer -All (or every) item
-Results: parameters
Sample - correct answer -A portion of the population
-Generally you will be told that a specific number of items is sampled
Result: statistics
Surveyed 956 residents in South Carolina. One question was, "Please tell me if you would
consider voting for this candidate, would you not consider voting for this candidate, or don't
you know enough to say?" Of those surveyed, 354 indicated that they would consider voting for
U.S. Senator Lindsey Graham.
What is the population of interest for this survey? - correct answer Residents of South Carolina
Surveyed 956 residents in South Carolina. One question was, "Please tell me if you would
consider voting for this candidate, would you not consider voting for this candidate, or don't
you know enough to say?" Of those surveyed, 354 indicated that they would consider voting for
U.S. Senator Lindsey Graham.
What is the sample for this survey
A. 354 responders who indicated that they would consider voting for Lindsey Graham
B. 602 responders who indicated that they would NOT consider voting for Lindsey Graham
C. Likely Republican voters in South Carolina
D. Residents of South Carolina
E. 956 residents in South Carolina who were contacted by phone - correct answer E. 956
residents in South Carolina who were contacted by phone
A summary measure that is computed to describe a characteristic from only a sample of the
population is called _______. - correct answer a statistic
A university chancellor wanted to find out the proportion of students at her university who
visited campus bars on the weekend before the final exam week. Her assistant took a random
sample of 250 students and computed the portion of students in the sample who visited
campus bars on the weekend before the final exam.
, The portion of all students at her university who visited campus bars on the weekend before
the final exam week is an example of which of the following?
A. a statistic
B. a categorical variable
C. a parameter
D. a numerical variable - correct answer C. a parameter
A university chancellor wanted to find out the proportion of students at her university who
visited campus bars on the weekend before the final exam week. Her assistant took a random
sample of 250 students.
The portion of students in the sample who visited campus bars on the weekend before the final
exam week is an example of _______.
A. a statistic
B. a categorical variable
C. a parameter
D. a numerical variable - correct answer A. a statistic
categorical variable - correct answer -Values that can be placed into specific categories
-NOT a count or a measure
-there can't be an average (or it's meaningless)
(-Nominal or Ordinal)
nominal categorical variables - correct answer No ranking between categories (ex: favorite soft
drink) (N: No)
ordinal categorical variables - correct answer when there IS a ranking between categories (ex:
rate your experience) (O: Ordered)
numerical variables - correct answer -Consists of values that represent a COUNTED or
MEASURED quantity
Population - correct answer -All (or every) item
-Results: parameters
Sample - correct answer -A portion of the population
-Generally you will be told that a specific number of items is sampled
Result: statistics
Surveyed 956 residents in South Carolina. One question was, "Please tell me if you would
consider voting for this candidate, would you not consider voting for this candidate, or don't
you know enough to say?" Of those surveyed, 354 indicated that they would consider voting for
U.S. Senator Lindsey Graham.
What is the population of interest for this survey? - correct answer Residents of South Carolina
Surveyed 956 residents in South Carolina. One question was, "Please tell me if you would
consider voting for this candidate, would you not consider voting for this candidate, or don't
you know enough to say?" Of those surveyed, 354 indicated that they would consider voting for
U.S. Senator Lindsey Graham.
What is the sample for this survey
A. 354 responders who indicated that they would consider voting for Lindsey Graham
B. 602 responders who indicated that they would NOT consider voting for Lindsey Graham
C. Likely Republican voters in South Carolina
D. Residents of South Carolina
E. 956 residents in South Carolina who were contacted by phone - correct answer E. 956
residents in South Carolina who were contacted by phone
A summary measure that is computed to describe a characteristic from only a sample of the
population is called _______. - correct answer a statistic
A university chancellor wanted to find out the proportion of students at her university who
visited campus bars on the weekend before the final exam week. Her assistant took a random
sample of 250 students and computed the portion of students in the sample who visited
campus bars on the weekend before the final exam.
, The portion of all students at her university who visited campus bars on the weekend before
the final exam week is an example of which of the following?
A. a statistic
B. a categorical variable
C. a parameter
D. a numerical variable - correct answer C. a parameter
A university chancellor wanted to find out the proportion of students at her university who
visited campus bars on the weekend before the final exam week. Her assistant took a random
sample of 250 students.
The portion of students in the sample who visited campus bars on the weekend before the final
exam week is an example of _______.
A. a statistic
B. a categorical variable
C. a parameter
D. a numerical variable - correct answer A. a statistic
categorical variable - correct answer -Values that can be placed into specific categories
-NOT a count or a measure
-there can't be an average (or it's meaningless)
(-Nominal or Ordinal)
nominal categorical variables - correct answer No ranking between categories (ex: favorite soft
drink) (N: No)
ordinal categorical variables - correct answer when there IS a ranking between categories (ex:
rate your experience) (O: Ordered)
numerical variables - correct answer -Consists of values that represent a COUNTED or
MEASURED quantity
