If All Visitors to the CNN Web Site Are Invited

question 47

Multiple Choice

If all visitors to the CNN Web site are invited to take part in the daily poll online,is the resulting sample likely to be biased?

• A) No,this will result in a simple random sample.
• B) No,although this sample would not be random,it would definitely be representative of the population.
• C) Yes,the sample is likely to suffer from non-response and self-selection bias.
• D) More information is needed to answer the question.

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Definitions:

Information

Data that has been processed or structured in a meaningful way to be useful for decision-making or analysis.

Profit Center

A division whose parent company evaluates it on the basis of the profit it earns.

Executives

Executives are high-level managers or administrators in organizations, responsible for strategizing and decision-making to drive the company towards its goals.

Attention

The focused mental engagement on a particular item of information, object, or task, and the process of selectively concentrating on one aspect while ignoring others.