To Test the Effects of Acid Rain on the Growth

question 56

Multiple Choice

To test the effects of acid rain on the growth of white pine trees, a conservationist measures the diameter (in centimeters) of 200 white pines in the Allegheny National Forest in northwest Pennsylvania.The average diameter of the sampled trees is 23.42 cm.Does the sample provide sufficient evidence to conclude that the current mean diameter of the white pines is less than that recorded 50 years ago (μ = 24.8) if the standard deviation is 6 cm? Calculate the p-value and make an appropriate decision.(Use α = 0.05) .

• A) p-value = 0.9994; fail to reject H₀
• B) p-value = 0.0006; reject H₀
• C) p-value = 0.0006; fail to reject H₀
• D) p-value = 0.9994; reject H₀

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Definitions:

Rubric

A set of guidelines or criteria used to evaluate or score performance, products, or responses in a consistent and standardized manner.

Critical Thinking

The intellectual discipline of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information gathered from, or generated by, observation, experience, reflection, reasoning, or communication.

Analytical

Pertaining to the systematic examination and evaluation of data or information, often by breaking it into its component parts to uncover their interrelationships.

Destructive

Causing great and irreparable harm or damage.