Use the Normal to Model the Distribution of Sample Proportions

question 11

Multiple Choice

Use the Normal to model the distribution of sample proportions.
-The owner of a small convenience store is trying to decide whether to discontinue
Selling magazines. He suspects that only 5% of the customers buy magazines and thinks
That he might be able to sell something more profitable. Before making a final decision,
He keeps track of the number of customers who buy magazines on a given day. In a
Typical day his store has 280 customers. Would it be unusual for 28 customers to
Purchase magazines?

• A) No, because it is close to the average number expected.
• B) No, because it represents 10% of the customers who come to the store on a typical day.
• C) Yes, because it is more than three standard deviations above the mean of the sampling distribution.
• D) Yes, because it is two standard deviations below the mean of the sampling distribution.
• E) No, because it is only 5% higher than the mean of the sampling distribution.

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Definitions:

Compromised Coping

Compromised coping is a state wherein an individual's usual coping mechanisms are overwhelmed or ineffective, leading to difficulty in managing stress or emotional distress.

Aggressive Patient

A patient who exhibits behaviors that are forceful, hostile, or attacking, often challenging healthcare safety and management.

Intervention Team

A group of professionals from various disciplines working together to plan and carry out interventions for individuals requiring assistance in health, educational, or social settings.

Seclusion

The act of isolating oneself or being isolated from others, sometimes used in psychiatric settings to prevent harm.