Homework
Information
On this quiz, you may use your notes, but you should complete the quiz without help from others. This
quiz is a tool to help you and your instructor gauge your progress.
Question 1 point
Which of the following variables is/are quantitative? (Mark all that apply)
The number of people in a randomly selected classroom on campus
The 3 most common brands of car found in the US
The telephone number of a randomly selected business in town
1/1
Question 2
point
Which one of the following is a statistically valid reason for sampling randomly when choosing subjects for
a study?
Sampling randomly tends to reduce sampling bias or risk
Sampling randomly (with a large sample) gives a perfect reflection of the population
Sampling randomly is easier than sampling nonrandomly
Actually, there is no statistically valid reason for sampling randomly
Question 1/1
3 point
A study conducted by researchers from the Department of Education wanted to know the average debt of
college students in the United States. In order to obtain a sample representative of all students, the
researchers divided college students into the four classes (freshman, sophomore, junior, and senior) and
then took a random sample of students from each class. Which sampling method did they use?
This study source was downloaded by 100000790716548 from CourseHero.com on 08-18-2022 17:18:40 GMT -05:00
https://www.coursehero.com/file/19780650/Lesson-02-HW-Quiz/
, Stratified random sampling
Systematic random sampling
Cluster sampling
Simple random sampling
Question 1/1
4 point
Students in an Introductory Statistics class at BYU-Idaho were studying prices of cold cereal at grocery
stores in Rexburg. To get a sample of cold cereal prices, they went to Albertson's and rolled a die to
decide which box from the left of the top shelf they would start on. They then recorded every 6th cereal
after the first, moving from left to right down the shelves, recording the name, size, and price of each
cereal in their sample. Which sampling method did they use?
Stratified random sampling
Systematic random sampling
Cluster sampling
Simple random sampling
Question 1/1
5 point
Is the study described in the previous question an experiment or an observational study, and why?
An experiment, because the students had control over which sampling method they
used
An experiment, because the students had control over which cereals would be
This study source was downloaded by 100000790716548 from CourseHero.com on 08-18-2022 17:18:40 GMT -05:00
https://www.coursehero.com/file/19780650/Lesson-02-HW-Quiz/
Information
On this quiz, you may use your notes, but you should complete the quiz without help from others. This
quiz is a tool to help you and your instructor gauge your progress.
Question 1 point
Which of the following variables is/are quantitative? (Mark all that apply)
The number of people in a randomly selected classroom on campus
The 3 most common brands of car found in the US
The telephone number of a randomly selected business in town
1/1
Question 2
point
Which one of the following is a statistically valid reason for sampling randomly when choosing subjects for
a study?
Sampling randomly tends to reduce sampling bias or risk
Sampling randomly (with a large sample) gives a perfect reflection of the population
Sampling randomly is easier than sampling nonrandomly
Actually, there is no statistically valid reason for sampling randomly
Question 1/1
3 point
A study conducted by researchers from the Department of Education wanted to know the average debt of
college students in the United States. In order to obtain a sample representative of all students, the
researchers divided college students into the four classes (freshman, sophomore, junior, and senior) and
then took a random sample of students from each class. Which sampling method did they use?
This study source was downloaded by 100000790716548 from CourseHero.com on 08-18-2022 17:18:40 GMT -05:00
https://www.coursehero.com/file/19780650/Lesson-02-HW-Quiz/
, Stratified random sampling
Systematic random sampling
Cluster sampling
Simple random sampling
Question 1/1
4 point
Students in an Introductory Statistics class at BYU-Idaho were studying prices of cold cereal at grocery
stores in Rexburg. To get a sample of cold cereal prices, they went to Albertson's and rolled a die to
decide which box from the left of the top shelf they would start on. They then recorded every 6th cereal
after the first, moving from left to right down the shelves, recording the name, size, and price of each
cereal in their sample. Which sampling method did they use?
Stratified random sampling
Systematic random sampling
Cluster sampling
Simple random sampling
Question 1/1
5 point
Is the study described in the previous question an experiment or an observational study, and why?
An experiment, because the students had control over which sampling method they
used
An experiment, because the students had control over which cereals would be
This study source was downloaded by 100000790716548 from CourseHero.com on 08-18-2022 17:18:40 GMT -05:00
https://www.coursehero.com/file/19780650/Lesson-02-HW-Quiz/
