Lucy Baker Is Analyzing Demographic Characteristics of Two Television Programs,American $\sigma$

question 32

Multiple Choice

Lucy Baker is analyzing demographic characteristics of two television programs,American Idol (population 1) and 60 Minutes (population 2) . Previous studies indicate no difference in the ages of the two audiences. (The mean age of each audience is the same.) Her staff randomly selected 100 people from each audience,and reported the following: ₁ = 43 years and ₂ = 45 years. Assume that $\sigma$ ₁ = 5 and $\sigma$ ₂ = 8. With a two-tail test and $\alpha$ = .05,the critical z values are _________________.

• A) -1.64 and 1.64
• B) -1.96 and 1.96
• C) -2.33 and 2.33
• D) -2.58 and 2.58
• E) -2.97 and 2.97

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Definitions:

False Memories

Recollections of events that never actually happened or memories that are distorted, often the result of suggestion or psychological processes.

Dissociation

A mental process of disconnecting from one’s thoughts, feelings, memories, or sense of identity often in response to traumatic events.

Parallel Processing

The ability of the brain to simultaneously process incoming stimuli of differing quality, a fundamental mechanism underlying sensory perception and cognition.

Hallucinations

Perceptions in a conscious and awake state in the absence of external stimuli which have qualities of real perception, often in visual or auditory forms.