Based on an EPSEM sample of 300 state university students, we estimate that the average number of hours of study time each week is 30 ± 2. In this example, the parameter is________.
A) 300.
B) 30.
C) ± 2.
D) unknown.

Question

Quizplus · Accepted Answer

The parameter refers to a characteristic of the population, which in this case (the true average study time for all state university students) is not provided and thus is unknown. The given information (30 ± 2) refers to a statistic derived from the sample.

Based on an EPSEM Sample of 300 State University Students