Question

Match the following scenarios to their sampling method.

A random number generator selects a subject’s ID number

You wish to take a survey of people’s opinion of your company’s workplace culture. It is made up of 7 departments and you randomly select a department and use everyone in it.  

You select every 10th shopper that comes through the door to take a survey on your company’s products.

A survey of military personal randomly selects 1% of personnel from each branch for a sample.

You take a survey of people at work to estimate the political affiliation of the U.S. population.

match to stratified, systematic, simple random, convenience and clustered

Answer 1

• A random number generator selects a subject’s ID number

Here probability of selecting any subject’s ID number is equally likely so it will be simple random sampling method

Answer: simple random

• You wish to take a survey of people’s opinion of your company’s workplace culture. It is made up of 7 departments and you randomly select a department and use everyone in it.  

Here the company is made up of 7 department (or cluster) and we select one of the cluster use everyone in it so it will be clustered sampling method

Answer: clustered

• You select every 10th shopper that comes through the door to take a survey on your company’s products.

Here the people we select for the survey of the product are selected with a fixed or periodic interval, in this case the fixed interval is every 10th shopper so it will be systematic sampling method.

Answer: systematic

• A survey of military personal randomly selects 1% of personnel from each branch for a sample

Here each branch is considered each strata and we take 1% personnel from each strata or branch so it will be stratified sampling method

Answer: stratified

• You take a survey of people at work to estimate the political affiliation of the U.S. population.

Here the survey is taken from a group of people easy to contact or to reach ,which in this case is the people at work so it will be convenience sampling method.

Answer: convenience