A political analyst in Manitoba surveys a random sample of registered Liberals and compares the results with those obtained from a random sample of registered Conservatives. This would be an example of an experimental design called a paired-difference or matched -pairs design.

Question

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This is not an example of a paired-difference or matched-pairs design because the two groups (registered Liberals and registered Conservatives) are not paired or matched in any way. It is simply a comparison between two independent groups.

A Political Analyst in Manitoba Surveys a Random Sample of Registered