
Concept explainers
To explain: Importance of sampling in the manufacturing process with an example of an unbiased and biased sampling method used to check the quality of DVDs.

Explanation of Solution
Given Information: Explanation is to be given using an example of sampling method used to check the quality of DVDs.
For any manufacturing company, the quality of the product they make must be top-notch. To ensure the product remains top quality, sampling is absolutely necessary in the manufacturing process.
By sampling, it helps us to determine by taking a random sample of a particular batch of product and inspecting them. If there any defect, then that batch is discarded, by doing so only the products. That are of the top quality must pass the inspections.
The biased way is to conduct an online survey of the quality of DVDs by emailing them to the productive manager of that particular company. This way, there is no need to force them and the ones who are willing to answer the survey can answer the survey.
The unbiased way to check the quality of DVDs is by conducting the survey by asking the people directly.
Chapter 10 Solutions
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