TABLE 7-1 The Manager of the Customer Service Division of a Major

Multiple Choice

TABLE 7-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products.
-Referring to Table 7-1, if there are 4 different brands of DVD players made by the company, the best sampling strategy would be to use a

A) simple random sample.
B) stratified sample.
C) cluster sample.
D) systematic sample.