Compute Probabilities of a Sample Proportion
-Smith Is a Weld $5 \%$

question 5

Multiple Choice

Compute Probabilities of a Sample Proportion
-Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift $5 \%$ of all welds done will be substandard. If Smith checks 300 of the 7500 welds completed that shift, what is the probability that he will find less than 20 substandard welds?

• A) \(0.9066\)
• B) \(0.4066\)
• C) \(0.0934\)
• D) \(0.5934\)

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Definitions:

Anorexia Nervosa

An eating disorder characterized by an obsessive fear of gaining weight, resulting in severe restrictions on food intake and potentially life-threatening weight loss.

Distorted Perception

A cognitive error where reality is inaccurately perceived, often due to psychological factors influencing one's interpretive processes.

Significantly Below

Refers to a performance or measurement that is much lower than the standard or expected level.

Bulimia Nervosa

An eating disorder characterized by episodes of binge eating followed by inappropriate methods of weight control, such as vomiting, fasting, or excessive exercise.