Sampling Method

An auto analyst is conducting a satisfaction survey, sampling from a list of 10,000 new car buyers. The list includes 2,500 Ford buyers, 2,500 GM buyers, 2,500 Honda buyers, and 2,500 Toyota buyers. The analyst selects a sample of 400 car buyers, by randomly sampling 100 buyers of each brand.

• Random

• Stratefied

• Systematic

• Cluster

What type of Sampling?

Every fifth person boarding a plane is searched thoroughly.

• Random

• Convenience

• Systematic

• Voluntary

What type of Sampling?

At a local community college, five math classes are randomly selected out of 20 and all of the students from each class are interviewed.

• Random

• Stratefied

• Systematic

• Cluster

What type of Sampling?

A market researcher randomly selects 200 drivers under 35 years of age and 100 drivers over 35 years of age.

• Random

• Stratefied

• Systematic

• Cluster

What type of sampling is shown?

• Simple Random Sample

• Systematic Sample

• Cluster Sample

• Stratified Sample

Which of the following methods would be the best way to get a representative sample of people living in Mineola?

• ask every fifth person walking into Roosevelt Field Mall on a Saturday morning

• ask the members of the Mineola Chamber of Commerce

• ask the fourth graders at Jackson Ave.

• randomly select 50 addresses from a list of all Mineola residences and call those households

A student wants to know which type of pizza the students at his high school prefer. Which option would give a unbiased, representative sample:

• Asking all the students in the hot lunch line.

• Asking 10 random students from each homeroom.

• Asking every other student who gets off a school bus.

• Asking all the 10th graders.

The names of 70 contestants are written on 70 cards. The cards are placed in a bag and three names are picked from the bag.

• Random

• Convenience

• Systematic

• Voluntary

You want to know the average number of hours that high school seniors spend playing video games in your state. You randomly select 20 high schools in the state and then ask all the seniors at each of the 20 high schools about their video game habits.

• Random

• Stratefied

• Systematic

• Cluster

What type of Sampling?

A shopping mall management company would like to know the average amount that shoppers in the mall spend during their visit. They post two survey takers near one of the exits who ask shoppers to tell them what they spend as they leave the mall.

• Random

• Convenience

• Systematic

• Voluntary