What is an outlier?
An observation value that exceeds 3 standard deviations from the mean
What are the 2 types of estimates of parameters?
- Interval estimate
Point Estimate
Single number representing the best guess for a parameter
Interval Estimate
Interval of numbers around the point estimate where the parameter value is believed to fall
What is “efficient” in statistics?
If it falls closer on the average than other estimators to the parameter
Denotes an estimator of a parameter
Standard Error
A tool used to measure our ability to consider sample statistics as population parameters
Confidence Interval