Sampling Methods

A random sample of skiers at the Aspen Ski Resort was selected by the makers of a

particular brand of skiing equipment. Their method for selecting the sample required

that individuals waiting in line for the lift be asked questions about various brands of

equipment.

What kind of sampling method are they using?

• Convenience Sampling

• Simple random sample

• stratified sampling

• systematic sampling

You are designing a sampling plan for a survey of city governments in your state to find

out the amount of money they are spending on administrative salaries.

Decide which sampling method would be best.

• systematic sample

• Cluster sample

• Simple Random Sample (SRS)

• convenience sample

Instead of just city governments as in problem #2, you want to examine the

administrative salaries among all types of governments in the state.

• convenience sampling

• stratified sampling

• systematic sampling

• simple random sample (SRS)

A soda manufacturer is considering abandoning cans in favor of glass containers.

Describe a method by which a sample of the company's customers could be selected.

Suppose you want to estimate the total amount of money spent by students on textbooks

each semester at SMU.

What would be an appropriate sampling method knowing that

students take different types of courses each year?

• stratified sampling

• cluster sampling

• simple random sampling

• systematic sampling

A wholesale seafood business serves a city with three distinctly different market areas.

In order to decide how to allocate sales effort and where to locate retail markets, the

wholesaler wants to obtain an estimate of the average monthly seafood consumption per

household in the city. What kind of sampling method would be appropriate?

• multistage

• systematic sampling

• cluster sampling

• convenience sampling

As part of an appraisal of the retail value of homes in Southlake, a sample of homes will

be taken to find the average value of a house. Describe a method to obtain this sample.

• cluster sampling

• Stratified sampling

• convenience sampling

• simple random sample

Fortune Magazine is interested in the average annual compensation for executives in the

electronics industry. How should the magazine draw a sample to determine the average?

Time Magazine wishes to know whether its readership is satisfied with the current

format used for printing the magazine. How should it randomly select a representative

sample of its readers?

• survey

• convenience sample

• systematic sample

• cluster sample

Before implementing a plan designed to reduce flight time, and hence conserve fuel and

energy, the US Air Force needs an estimate of the total number of miles flown by a

particular type of aircraft during a given month. Air Force records show that there are

1500 aircraft of this type at 96 different airfields around the country. How should the

USAF get its sample?

• simple random sample

• convenience

• cluster

• systematic