State Populations Currently, California has the largest popula...

Question

State Populations Currently, California has the largest population with 39,776,830 residents, and Wyoming has the smallest population with 573,520 residents.

d. If we randomly select 50 full-time workers in each of the 50 states, what type of sample is obtained? (random, systematic, convenience, stratified, cluster)

Accepted Answer

All right. Hello, everyone. So this question says, if we randomly select 50 full-time employees from each department in a company, what type of sample is obtained? Option A says systematic sampling. B says convenience sampling. C says stratified sampling. D says cluster sampling, and E says simple random sample. All right, so first and foremost. What are the differences between each type of sampling? Starting off, for example, with systematic sampling. Recall it in systematic sampling. What you're doing is selecting the nth individual from a greater group of people. So if you had, for example, 100 people to choose from, selecting every 5th individual would be an example of systematic sampling. On the other hand, convenient sampling is more about ease of access. So you're choosing samples, you're choosing individuals for the study based on who is most easily available to you. Now, in stratified sampling, the key word for stratified sampling is strata. Which is another way of saying subgroup. So in a case where stratified sampling would be appropriate, you have a greater population that you would like to study. First, you would divide the population into subgroups, also called strata, and then sample individuals from each subgroup. Cluster sampling on the other hand. It is about selecting entire groups of people as opposed to sampling individuals. And last but not least, you have the simple random sample. Where every individual has an equal chance of being selected. So now let's go back to the scenario. And in the scenario, you have a company, which in this case is the population. And what you're doing is selecting employees from the company but from each department. So if the company is the population. Each department is a subgroup or a strata. And so because you're taking. Or because you're sampling individuals from each subgroup, stratified sampling is most appropriate, which means that C is the correct answer. And there you have it. So with that being said, thank you so very much for watching, and I hope you found this helpful.

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Key Concepts

Sampling Methods

Stratified Sampling

Cluster Sampling

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