In an Analysis of Variance, If the Within-Group Variance Estimate

question 67

Multiple Choice

In an analysis of variance, if the within-group variance estimate is about the same as the between-group variance estimate, then:

• A)the null hypothesis should be rejected
• B)any difference between sample means is probably due to random sampling
• C)an error in the figuring was made, because a within-group variance estimate must always be smaller than the between-group variance estimate
• D)any difference between sample means is probably due to a real difference caused by the experimental conditions

---

Definitions:

False Statement

A claim or assertion that is not in accordance with facts or truth.

Malpighian Tubules

Excretory structures that remove wastes from the hemolymph (blood) of insects and arachnids, playing a role in osmoregulation.

Active Transport

A cellular process that moves substances against their concentration gradient, requiring energy.

Toxic Ammonia

Harmful levels of ammonia that can accumulate in the body or environment, potentially leading to health issues or ecological damage.