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.

Question

Quizplus · Accepted Answer

A stratified sample would be the best choice in this case as there are 4 different brands of DVD players made by the company. By dividing the population into strata (i.e. subgroups) based on the different brands of DVD players, we can ensure that each stratum is represented in the sample, which would lead to a more representative sample overall. This would increase the accuracy of the results and allow for more targeted analyses of different aspects of satisfaction for each brand. Conversely, a simple random sample, cluster sample, or systematic sample would not necessarily ensure representation across all four brands.

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