A study is under way to determine the average height of all 29,000 adult pine trees in a certain national forest.The heights of 600 randomly selected adult pine trees are measured and analyzed.The parameter in the study is:
A)the average height of the 600 randomly selected adult pine trees.
B)the average height of all the adult pine trees in this forest.
C)all the adult pine trees in this forest.
D)the 600 adult pine trees selected at random from this forest.

Question

Quizplus · Accepted Answer

The parameter of interest in this study is the average height of all adult pine trees in the national forest, not just the sample of 600 trees selected for measurement and analysis. This is because the goal is to make an inference about the entire population of adult pine trees, not just the sample. Therefore, choice B is the best option.

A Study Is Under Way to Determine the Average Height