Question

The manager of the customer service division of a major consumer electric company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products. If there are 4 different brands of Blu-ray players made by the company, the best sampling strategy would be to use a?

Answer 1

Answer:  Stratified random sampling

Explanation:

Given : The manager of the customer service division of a major consumer electric company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products. If there are 4 different brands of Blu-ray players made by the company.

The best sampling strategy which we can use is stratified random sampling because it is not much costly and also it induces the efficiency . We can me different strata according to the 4 brands , then we can randomly select participants for the sample.

• Stratified random sampling is a method of probability sampling in which a researcher divides the entire population into multiple homogeneous groups known as strata and then he randomly select an sample members from each strata for research .