It Is Common to See Convenience Stores Open 24 Hours

question 59

Essay

It is common to see convenience stores open 24 hours a day even though many times late at night or in the early hours of the morning there are very few customers. What can explain this seemingly odd behavior?

Apply principles of statistical process control in designing control charts, including sample size and sampling frequency decisions.

Identify different types of patterns (trend, cycle, level shift, instability) in control charts and their implications.

Calculate and interpret the average run length (ARL) in the context of control charts.

Describe the concepts of assignable variation and chance variation and give relevant examples.

---

Definitions:

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a period of rest and with no further conditioning.

Addiction

A chronic, relapsing disorder characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain.

Psychological Addiction

A dependency of the mind leading to compulsive engagement in rewarding stimuli despite adverse consequences.

Biological Addiction

A dependency on substances due to changes in brain chemistry and function, leading to compulsive use despite harmful consequences.