Currently, there are 4227 Walmart stores in the United States and another 3210 stores outside of the
Question:
Currently, there are 4227 Walmart stores in the United States and another 3210 stores outside of the United States.
a. Are the numbers of Walmart stores discrete or continuous?
b. What is the level of measurement for the numbers of Walmart stores in different years (nominal, ordinal, interval, ratio)
c. If a 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 a survey is conducted by randomly selecting 20 Walmart stores and interviewing all of the employees at the selected stores, what type of sampling is used? (random, systematic, convenience, stratified, cluster)
e. What is wrong with surveying customer satisfaction by mailing questionnaires to 10,000 randomly selected customers?
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