If the Confidence Interval for the Difference in Treatment Means

question 68

Multiple Choice

If the confidence interval for the difference in treatment means contains zero, then:

• A) we can conclude that there is a significant difference in the selected treatment means.
• B) we can conclude that there is no significant difference in the selected treatment means.
• C) we can conclude that the selected treatment means both equal zero.
• D) we can conclude that at least one of the selected treatment means equals zero.

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Definitions:

Ecosystem

A community of living organisms interacting with each other and their physical environment.

Vulnerable

A state of being open to harm, damage, or illness, either physically, emotionally, or environmentally.

Invader Species

Organisms introduced to a new habitat where they proliferate and can outcompete native species, also known as invasive species.