The Mean of a Normally Distributed Group of Weekly Incomes

question 117

Multiple Choice

The mean of a normally distributed group of weekly incomes for a group of executives is $2,400 and the standard deviation is $600.What is the z-score for an income of $1,500/week?

• A)-1.5
• B)-1.0
• C)2.5
• D)1.9

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Definitions:

Acetylcholine

A neurotransmitter in the nervous system that plays a crucial role in muscle activation and memory formation.

Antagonist

In pharmacology, a substance that blocks or dampens a biological response by binding to and inhibiting the effect of an agonist (the substance that would normally induce that response).

Receptor Sites

Specific locations on the surface of a cell or within the central nervous system where neurotransmitters bind to trigger a response.

Sleep

A naturally recurring state of rest for the mind and body, characterized by altered consciousness and reduced sensory and muscle activity.