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

question 48

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.
$\begin{array}{cccccc}\hline \text { Sample } & & & \text { Data } & & \\\hline 1 & 4.5 & 2.1 & 5.4 & 2.7 & 4.5 \\2 & 3.6 & 3.5 & 6.1 & 4.9 & 4.2 \\3 & 5.1 & 6.2 & 2.4 & 3.7 & 5.1 \\4 & 4.9 & 5.4 & 3.5 & 5.4 & 3.7 \\5 & 4.1 & 3.8 & 3.8 & 4.6 & 4.9 \\6 & 3.7 & 4.6 & 4.8 & 4.2 & 5.2 \\7 & 5.6 & 4.7 & 4.1 & 5.1 & 3.1 \\8 & 4.8 & 5.1 & 4.3 & 4.6 & 2.7 \\9 & 6.1 & 4.6 & 4.7 & 3.8 & 4.2 \\10 & 2.4 & 4.8 & 5.6 & 4.1 & 4.8 \\11 & 3.7 & 5.3 & 2.9 & 4.7 & 6.3 \\12 & 4.5 & 3.4 & 3.4 & 5.2 & 4.5 \\13 & 5.2 & 2.7 & 5.1 & 6.2 & 2.9 \\14 & 3.4 & 5.5 & 4.6 & 2.4 & 3.4 \\15 & 4.8 & 3.6 & 4.8 & 4.4 & 4.6 \\16 & 4.1 & 4.6 & 4.9 & 4.9 & 4.3 \\17 & 4.6 & 3.7 & 3.5 & 3.7 & 5.2 \\18 & 5.1 & 4.2 & 5.6 & 4.1 & 5.7 \\19 & 3.7 & 4.8 & 4.9 & 2.3 & 4.5 \\20 & 5.4 & 3.9 & 4.2 & 5.4 & 4.3 \\\hline\end{array}$

a. $\text { Find } D_{3} \text { and } D_{4} \text {. }$
b. $\text { Construct an R-chart. }$
c. $\text { Is the process out of control? Explain. }$

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Definitions:

Standard

Established norms or requirements that specify technical or operational criteria, ensuring uniformity and quality across products and practices.

D-Train Combination

Refers to a specific configuration of linked railway or road vehicles, typically for the efficient transportation of goods or passengers.

Points Of Articulation

The specific locations at which parts of an articulated object (like a toy or a robotic arm) can bend or rotate.

Wiring Gauge

A measurement of the diameter of electrical wire, determining its current-carrying capacity and resistance.