Section 3.2 Flashcards
(4 cards)
1
Q
Interval Estimate
A
A range of plausible values for a population parameter
2
Q
Margin of Error
A
Statistic +- margin of error
Where the margin of error reflects the precision of the sample statistic as a point estimate for the parameter
3
Q
Confidence Interval
A
A confidence interval for a parameter is an interval computed from sample data by a method that will capture the parameter for a specific proportion of all samples
4
Q
95% Confidence Interval
A
If the sampling distribution is relatively symmetric and bell-shaped, a 95% confidence interval can be estimated using:
Statistic +- 2 * SE
