The Following Shows the Monthly Sales in Units of Six

question 16

Essay

The following shows the monthly sales in units of six salespersons before and after a bonus plan was introduced. At 95% confidence, determine whether the bonus plan has increased sales significantly. (For the following matched samples, let d = After - Before.) $\begin{array}{ll}\text { Salesperson }&\text { After } & \text { Before } \\1&94 & 90 \\2&82 & 84 \\3&90 & 84 \\4&76 & 70 \\5&79 & 80 \\6&85 & 80\end{array}$

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Definitions:

Moral Therapy

A 19th-century psychiatric treatment approach focusing on humane treatment and moral discipline as a remedy for mental illness.

Somatogenic

A term referring to the origin of physical bodily disorders, suggesting that psychological conditions have a physical (somatic) cause.

Psychogenic

Pertains to physical illnesses or conditions that are believed to arise from emotional or mental stressors, rather than biological factors.

Abnormal Behaviour

Refers to patterns of emotion, thought, and action deemed pathological for one reason or another, often being statistically rare, violating norms, or causing distress.