Quiz on Sampling (Aug 1, 2021)

A teacher puts students' names in a hat and chooses without looking to get a sample of 3 students.

What type of sample is this?

• Simple random sample

• Stratified random sample

• Cluster random sample

• Systematic random sample

• All of the above

Sampling is about ______ a sample from a population.

• adding

• including

• selecting

• involving

Simple random sampling is a ______ sampling method.

• non-probability

• probability

• both A and B

• neither A nor B

In order to use samples to estimate something from the population, the sample should be _________________ the population.

• exactly the same as

• larger than

• nothing like

• representative of

If every individual in a population has the same chance of being included in a sample, the sample is a(n) _________ sample.

• Biased Sample

• Convenience Sample

• Random Sample

• Stratified Sample

Mrs. Diaz wants to find the average height of all her students in her classes. She decides to use the first 5 people who walk in the door. Is this a good representative sample?

• Yes

• No

A professor asks the first 5 students who arrive to class to participate in a research study about young adult sleep patterns.

What type of sample is this?

• Simple random sample

• Stratified random sample

• Cluster random sample

• Convenience sample

It is helpful to use a multi-stage cluster sample when:

• The population is widely dispersed geographically

• You have limited time and money available for travelling

• You want to use a probability sample in order to generalise the results

• All of the above

A student wants to determine the favorite professional sport of students in her high school. Which of the following samples is most likely to giver her a representative sample?

• A random Sample of the students in the art honor society

• A random sample of students on the basketball team

• A random sample of students on the official school enrollment roster

• A random sample of students in the library during lunch

What is good sample for research?

• A good sample should be a selective subset of the population we are interested in studying.

• A good sample is one where each participant has an equal chance of being randomly selected into the study.

• A good sample is biased.

• All of the above.