Solve the Problem. -In a Certain Population, Body Weights Are Normally Distributed with Normally

question 115

Multiple Choice

Solve the problem.
-In a certain population, body weights are normally distributed with a mean of 152 pounds and a standard deviation of 26 pounds. How many people must be surveyed if we want to estimate the percentage who weigh more than 180 pounds? Assume that we want 96% confidence that the error is no more than 2 percentage points.

• A)923
• B)1267
• C)2001
• D)2628

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Definitions:

Autonomic Nervous System

Part of the peripheral nervous system that regulates involuntary bodily functions, including heart rate, digestion, and respiratory rate.

Continuous State

A condition or situation that persists over a period of time without interruption.

Free-Floating

Anxiety that is not attached to any specific object, situation, or subject, often manifesting as a general feeling of unease or dread.

Generalized Anxiety Disorder

A chronic mental health condition characterized by excessive, uncontrollable worry about everyday events and activities.