Other Sampling Methods

Question 1

Which of the following is an advantage of using stratified random sampling?

Revolt · Accepted Answer

D: Stratified random sampling provides more precise estimates than simple random sampling.

Question 2

Which of the following statements is true about cluster sampling?

Revolt · Accepted Answer

D: Participants within clusters usually live within close proximity, which saves time and money for data collection.

Question 3

Executive leadership wants to survey employees at a grocery store that is open 24 hours a day. They are interested in getting surveys from people from every job title (cashier, stocker, manager, etc.) Which of the following uses systematic random sampling?

Revolt · Accepted Answer

D: List all of the employees by their employee ID number. Survey the 11th person on the list (with the number 11 being randomly chosen), then survey every 10th person on the list after that.

Question 4

Race organizers want to survey the participating runners on the difficulty of the running course. Which of the following most effectively uses cluster sampling?

Revolt · Accepted Answer

D: Place the runners into groups based on the seconds part of their finishing time (0:00–0:05, 0:06–0:10, etc.). Randomly select 2 of these groups, and survey every runner within the chosen groups.

Question 5

A statistics teacher has 4 periods of introductory statistics. She wants to get students’ opinions on a new homework policy. To get a sample, the teacher lists every student’s ID number and uses a computer to randomly select 20 of the IDs. Which sampling method was used?

Revolt · Accepted Answer

B: simple random sampling

Question 6

A paper company wants to survey its employees about a new policy on sales commissions. Which of the following would result in a stratified random sample?

Revolt · Accepted Answer

B: Randomly select 2 people from each department (sales, customer service, accounting, etc.)

Question 7

A band director is trying to decide what music to play for the halftime show. She surveys the marching band students to get their opinions about which music they would prefer. Which of the following sampling techniques would provide a stratified random sample that would accurately represent the students’ opinions?

Revolt · Accepted Answer

B: Randomly select 2 students from each type of instrument (trumpet, saxophone, clarinet, etc.).

Question 8

A teacher is interested in students’ opinions about an upcoming school dance. Which of the following techniques uses systematic random sampling?

Revolt · Accepted Answer

C: Survey the 10th student arriving at school (with the number 10 being randomly chosen), then survey every 12th student after that.

Question 9

A teacher has 36 students who were randomly assigned to 6 rows of 6 desks. She wants to survey the students about the homework policy. Which of the following uses cluster sampling?

Revolt · Accepted Answer

A: Roll a fair number cube. Use the number rolled to pick a row of students. Survey every student in that row.

Question 10

A local vet wants to survey his clients about their satisfaction regarding the care their pet received. He groups all of the clients by the type of pet they have (dog, cat, bird, exotic, or multiple), then randomly selects 5 people from each group. Which sampling method was used?

Revolt · Accepted Answer

C: stratified random sampling

Other Sampling Methods Answers

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