A single value used to approximate a population parameter	Confidence level
The number on the borderline separating sample statistics that are likely to occur from those that a unlikely to occur	confidence interval
The maximum likely difference between the observed sample and the true value of the population	Margin of error
A range of values used to estimate the true value the parameter	Point estimator
The probability of the proportion of times that the confidence interval actually does contain the population parameter	Critical value

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