1
Q
Estimator of a population
A
A random variable that depends on the same information
Its value provides approximations of this unknown parameter
2
Q
Examples of a population parameter
A
Population mean
Population proportion
3
Q
Point estimator of a population parameter
A
A function of the sample information that produces a single number called a point estimate
4
Q
Example of a point estimator
A
Sample mean is a point estimator of the population mean
The value that the mean assumes for a given set of data is called the point estimate
5
Q
Confidence interval estimator for a population parameter
A
A rule for determining an interval that is likely to include the parameter.
