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3. Walmart Stores: Currently, there are 4,227 Walmart stores in the United States and another 3,210 stores outside of the United States.

A. Are the number of Walmart stores discrete or continuous?

B. What is the level of measurement for the number of Walmart stores in different years? (nominal, ordinal, interval, or ratio)

C. If the survey is conducted by randomly selecting 10 customers in every Walmart store, what type of sampling is used? (random, systematic, convenience, stratified, cluster)

D. If the survey is conducted by randomly selecting 20 Walmart stores and interviewing all the employees at the stores, what type of sampling is used? (random, systematic, stratified, cluster)

Sagot :

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Final answer:

The answer explains the nature of Walmart stores, their measurement level, sampling methods, and types in a concise manner.


Explanation:

A. The number of Walmart stores is discrete because it refers to distinct, separate entities.

B. The level of measurement for the number of Walmart stores is ratio because there is a true zero point (absence of Walmart stores) and the values can be compared using ratios.

C. If 10 customers are randomly selected in every Walmart store, cluster sampling is used as customers are grouped in stores.

D. When 20 Walmart stores are randomly selected and all employees are interviewed, it is an example of stratified sampling, where stores are treated as strata.


Learn more about Walmart stores and sampling methods here:

https://brainly.com/question/16607243


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