A sample statistic, such as , that estimates the value of the corresponding population parameter is known as a
A)point estimator
B)parameter
C)population parameter
D)Both a parameter and a population parameter are correct.

Question

A sample statistic, such as  , that estimates the value of the corresponding population parameter is known as a
A)point estimator 
B)parameter 
C)population parameter 
D)Both a parameter and a population parameter are correct.

Quizplus · Accepted Answer

A sample statistic, such as the given one, is used to estimate the value of the corresponding population parameter, therefore making it a point estimator. Choice B is incorrect because a parameter refers to a characteristic of the population, not a statistic. Choice C is also incorrect because it refers to the actual value of the parameter, not the estimate of it. Choice D is redundant and incorrect, as a parameter is already a population parameter by definition.

A Sample Statistic, Such as , That Estimates the Value