A Task Involves Positioning Two Metal Parts with a Rubber

question 195

Essay

A task involves positioning two metal parts with a rubber gasket sandwiched between them, inserting two bolts into predrilled holes, threading a nut onto each bolt, and tightening each bolt with a pneumatic wrench. In a preliminary study, the manager observed one of his workers perform this task five times. The observations were made in an air-conditioned, well-lighted training facility, at ground level, with all tools and equipment clean and readily available.
$$\begin{array} { |l | l | l | l | l | l | } \hline \text { Observation: } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Task time (seconds): } & 50 & 54 & 60 & 145 & 56 \\\hline\end{array}$$ a. What is the average observed time for this task?
b. What is the normal time for this task if the employee worked at a 10% slower pace than is typical for adequately trained workers?
c. What is standard time for this task if allowances are 7% constant and 5% variable?

---

Definitions:

Window Shoppers

Individuals who browse goods in stores without the intention of making a purchase.

Sensory Adaptation

Sensory adaptation is the process by which sensory receptors become less sensitive to constant stimuli over time.

Hedonistic Consumption

the practice of making purchases based on the desire for pleasure, enjoyment, or luxury rather than necessity.

Biological Differences

The physical and genetic variations observed among different individuals or groups of people.