Podcast
Questions and Answers
How does the presider distribute the speaker evaluation surveys?
How does the presider distribute the speaker evaluation surveys?
What method does Shawn use to measure his Internet connection speed?
What method does Shawn use to measure his Internet connection speed?
What is the size of the sample chosen by 24 Hour Fitness for the satisfaction survey?
What is the size of the sample chosen by 24 Hour Fitness for the satisfaction survey?
Which part of the day is NOT included in Shawn's measurement of Internet speed?
Which part of the day is NOT included in Shawn's measurement of Internet speed?
Signup and view all the answers
What type of survey does 24 Hour Fitness administer to its members?
What type of survey does 24 Hour Fitness administer to its members?
Signup and view all the answers
Is a simple random sample always preferred over other sampling plans?
Is a simple random sample always preferred over other sampling plans?
Signup and view all the answers
When conducting a cluster sample, is it better to have fewer clusters with more individuals if the clusters are heterogeneous?
When conducting a cluster sample, is it better to have fewer clusters with more individuals if the clusters are heterogeneous?
Signup and view all the answers
Are inferences based on voluntary response samples generally reliable?
Are inferences based on voluntary response samples generally reliable?
Signup and view all the answers
When obtaining a stratified sample, must the number of individuals included within each stratum be equal?
When obtaining a stratified sample, must the number of individuals included within each stratum be equal?
Signup and view all the answers
What type of sampling is demonstrated when a quality-control manager selects every 8th chip starting with the 3rd one?
What type of sampling is demonstrated when a quality-control manager selects every 8th chip starting with the 3rd one?
Signup and view all the answers
What type of sampling is used when the State Athletic Commission tests all members of the selected high school baseball teams?
What type of sampling is used when the State Athletic Commission tests all members of the selected high school baseball teams?
Signup and view all the answers
What type of sampling is demonstrated when a farmer samples all the trees within randomly selected subsections of his orchard?
What type of sampling is demonstrated when a farmer samples all the trees within randomly selected subsections of his orchard?
Signup and view all the answers
What type of sampling is involved when a college official takes a simple random sample from each class of students?
What type of sampling is involved when a college official takes a simple random sample from each class of students?
Signup and view all the answers
Study Notes
Sampling Methods
- Simple Random Sampling: Every member of the population has an equal chance of being selected. A smaller sample size is needed compared to other methods to obtain the same amount of information.
- Cluster Sampling: The population is divided into clusters (groups). A random selection of clusters is made, and all members within those selected clusters are included in the sample. Fewer clusters with more individuals is better when clusters are heterogeneous.
- Stratified Sampling: Dividing the population into strata (groups with similar characteristics). A simple random sample is taken from each stratum. The number of individuals in each stratum does not need to be equal.
- Systematic Sampling: Selecting every nth member of the population, starting from a randomly selected point.
- Convenience Sampling: Choosing individuals who are easily accessible. Inferences are not reliable.
- Voluntary Response Sampling: Individuals self-select to participate in the sample. Inferences are not reliable.
Identifying Sampling Types
-
Question 5:
- Blank 1: Systematic Sampling
- Blank 2: Cluster Sampling
- Blank 3: Simple Random Sampling
- Blank 4: Stratified Sampling
- Blank 5: Simple Random Sampling
- Blank 6: Voluntary Response Sampling
- Blank 7: Cluster Sampling
- Blank 8: Stratified Sampling
- Blank 9: Convenience Sampling
- Blank 10: Systematic Sampling
- Blank 11: Stratified Sampling
- Blank 12: Simple Random Sampling
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores various sampling methods used in statistics, including simple random sampling, cluster sampling, stratified sampling, systematic sampling, convenience sampling, and voluntary response sampling. Each method has its own advantages and is suited for different research situations. Test your knowledge and understanding of these key concepts.
