A Manufacturer of Laptop Computers Claims That Only 1% of Their

question 153

Essay

A manufacturer of laptop computers claims that only 1% of their computers are defective. In a sample of 600
computers, it was found that 3% were defective. If the proportion of defectives were really only 1%, there would
be less than 1 chance in 1000 of getting such a large proportion of defective laptops in the sample. Is there
statistically significant evidence against the manufacturer's claim? Why or why not?

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Definitions:

Hygiene Factor

Elements of the work environment that, according to Herzberg's two-factor theory, prevent job dissatisfaction but do not necessarily enhance job satisfaction, such as salary and working conditions.

Job Security

The chance or likelihood of a person maintaining their employment without facing the possibility of losing their job.

Autonomy

The degree of independence and self-direction that an individual or entity possesses.

Experienced Responsibility

The feeling or condition of having obligations or duties as a result of one's actions or roles gained through experience.