Using the T Test for Independent Groups, a Directional Alternative

question 143

Multiple Choice

Using the t test for independent groups, a directional alternative hypothesis predicts _________.

• A) µ 1 > µ 2
• B) µ 1 = µ 2
• C) µ 1 µ 2
• D) µ 1 > µ 2 or µ 1 µ 2 , depending on the direction

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Definitions:

Digestive System

The complex series of organs and glands responsible for the digestion and absorption of food, nutrients, and the elimination of waste from the body.

Anatomical Change

The alteration in the structure of body parts of an organism, which can occur over evolutionary time or due to environmental influences.

Thicker Enamel

A characteristic of dental tissues involving increased enamel thickness, often indicative of dietary adaptations among different species.

Larger Molars

Teeth, specifically molars, that are larger in size, which can reflect dietary adaptations in different species or individuals.