Instruction 7-5
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 Instruction 7-5,if there are 4 different brands of DVD players made by the company,the best sampling strategy would be to use a
A)a systematic sample.
B)a stratified sample.
C)a simple random sample.
D)a cluster sample.

Question

Quizplus · Accepted Answer

A stratified sample would be the best choice in this case as it would ensure representation from each of the 4 brands of DVD players made by the company. This would help to provide more accurate information on customer satisfaction for each brand rather than relying on a simple random sample or systematic sample, which may not ensure representation from each brand. A cluster sample would also not be appropriate as the customers are not geographically clustered.

Instruction 7-5 The Manager of the Customer Service Division of a Major