Solve the Problem

question 2

Multiple Choice

Solve the problem. Round to the nearest tenth unless indicated otherwise.
-Suppose that replacement times for washing machines are normally distributed with a mean of 8.4 years and a standard deviation of 2 years. Find the replacement time that separates the top 18% from the bottom 82%.

• A) 6.6 years
• B) 9.7 years
• C) 8.8 years
• D) 10.2 years

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Definitions:

Phobic Responses

Exaggerated fears triggered by specific objects, situations, or activities, resulting in intense anxiety or avoidance behaviors.

Mowrer

Psychologist O.H. Mowrer, known for his theories on learning and contributions to behavior therapy, especially in the treatment of fears and enuresis.

Obsessive-Compulsive Disorder

A mental disorder characterized by persistent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions).

Claustrophobia

An anxiety disorder characterized by an intense fear of being enclosed in a small space or unable to escape, leading to panic.