Asked by Russell Froat on Mar 10, 2024

Verified

A study is under way to determine the average height of all 63,000 adult walnut trees in a certain national forest.The heights of 950 randomly selected adult walnut trees are measured and analyzed.The sample in this study is:

A) the average height of the 950 randomly selected adult walnut trees.

B) the average height of all the adult walnut trees in this forest.

C) all the adult walnut trees in this forest.

D) the 950 adult walnut trees selected at random from this forest.

A) the average height of the 950 randomly selected adult walnut trees.

B) the average height of all the adult walnut trees in this forest.

C) all the adult walnut trees in this forest.

D) the 950 adult walnut trees selected at random from this forest.

National Forest

Public lands set aside by the government for the purpose of preserving forested areas, supporting biodiversity, and regulating the use of natural resources.

Walnut Trees

Deciduous trees known for their production of walnuts, valued for their wood and nuts, grown in temperate regions worldwide.

- Recognize the definitions of population and sample in statistical studies.
- Gain insight into the function of sampling within statistical study and the justification for random selection.

Verified Answer

PR

Pavel Rusev

Mar 10, 2024

Final Answer :

D

Explanation :

The sample in this study is the 950 adult walnut trees selected at random from this forest. This sample is being used to estimate the average height of all 63,000 trees in the forest. Thus, option D is the best choice.

## Learning Objectives

- Recognize the definitions of population and sample in statistical studies.
- Gain insight into the function of sampling within statistical study and the justification for random selection.

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