A Statistics instructor wishes to know the average age (in month)of his 200 students.He decides to choose 25 students from the class and ask them for their age.All 200 names are put in a hat and 25 names are then chosen at random (without replacement).The average age of the students chosen is observed to be 231 months.In this example,"231" is known as what?

Question

Quizplus · Accepted Answer

"231" is the sample statistic because it is a measure of a sample (25 students chosen from the class) and not the population as a whole. The sample size would be 25, the population statistic would require data from the entire population of 200 students, the population parameter would be the true average age of all 200 students, and there is no such thing as a sample parameter.

A Statistics Instructor Wishes to Know the Average Age (In