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What role does a moderator play in focus group research?
Margin Error
The amount of error allowed in the results of a statistical survey, reflecting the precision of the results.
Confidence Level
The probability or percentage that expresses how certain one can be about a confidence interval containing the true value of the parameter being studied.
Normal Distribution
A symmetric probability distribution centered around the mean, indicating that occurrences close to the mean are more common than those far away from it.
Confidence Interval
A spectrum of values calculated from statistcal samples which is expected to cover the value of a not yet known population trait.
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