Suppose We Want to Test the Claim That Less Than $1 / 2$

question 169

Multiple Choice

Suppose we want to test the claim that less than $1 / 2$ ½ of Americans are in favor of raising the voting age to 21. Is the hypothesis test left-tailed, right-tailed, or two-tailed?

• A) Two-tailed
• B) Right-tailed
• C) Left-tailed

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Definitions:

Trace Decay Theory

A theory of memory that proposes that memories leave a trace in the brain which fades over time unless it is actively retrieved.

Proactive Inhibition

The decrease in the ability to learn new information because previously learned information interferes with the new learning.

Retroactive Inhibition

The phenomenon where newer information interferes with the ability to recall older information.

Interference

A phenomenon where one's ability to learn or recall information is hindered by either the presence or the processing of other information.