The Table Below Shows the Data from Samples of Size $n=5$

question 7

Essay

The table below shows the data from samples of size $n=5$ randomly chosen from the outputs of a process on 20 different days. Assume the specification limits are USL $=2.1$ and $\mathrm{LSL}=5.7$ .


$\begin{array}{cccccc}\hline \text { Sample } & & {\text { Data }} \\\hline 1 & 4.5 & 2.1 & 5.4 & 2.7 & 4.5 \\2 & 3.6 & 3.5 & 6.1 & 4.9 & 4.2 \\3 & 5.1 & 6.2 & 2.4 & 3.7 & 5.1 \\4 & 4.9 & 5.4 & 3.5 & 5.4 & 3.7 \\5 & 4.1 & 3.8 & 3.8 & 4.6 & 4.9 \\6 & 3.7 & 4.6 & 4.8 & 4.2 & 5.2 \\7 & 5.6 & 4.7 & 4.1 & 5.1 & 3.1 \\8 & 4.8 & 5.1 & 4.3 & 4.6 & 2.7 \\9 & 6.1 & 4.6 & 4.7 & 3.8 & 4.2 \\10 & 2.4 & 4.8 & 5.6 & 4.1 & 4.8 \\11 & 3.7 & 5.3 & 2.9 & 4.7 & 6.3 \\12 & 4.5 & 3.4 & 3.4 & 5.2 & 4.5 \\13 & 5.2 & 2.7 & 5.1 & 6.2 & 2.9 \\14 & 3.4 & 5.5 & 4.6 & 2.4 & 3.4 \\15 & 4.8 & 3.6 & 4.8 & 4.4 & 4.6 \\16 & 4.1 & 4.6 & 4.9 & 4.9 & 4.3 \\17 & 4.6 & 3.7 & 3.5 & 3.7 & 5.2 \\18 & 5.1 & 4.2 & 5.6 & 4.1 & 5.7 \\19 & 3.7 & 4.8 & 4.9 & 2.3 & 4.5 \\20 & 5.4 & 3.9 & 4.2 & 5.4 & 4.3 \\\hline\end{array}$
a. Assuming the process is under control, construct a capability analysis diagram for the process.
b. Find the percentage of data items that fall outside the specification limits.
c. Is the process capable? Support your answer with a numerical measure of capability.

---

Definitions:

Foreign Stocks

Shares of companies that are based outside of an investor's own country, offering a way to gain exposure to international markets and diversify investment portfolios.

Lower Labor Standards

The degradation or reduction of labor standards concerning wages, working conditions, and employees' rights.

Free Trade Area

A free trade area is a region where a group of countries have signed a free-trade agreement, reducing or eliminating trade barriers among them.

Labor Mobility

The ease with which workers can move between jobs, regions, or industries, often influencing economic efficiency and worker welfare.