Examine the Given Run Chart or Control Chart and Determine

question 21

Essay

Examine the given run chart or control chart and determine whether the process is within statistical control. If it
is not, identity which of the three out-of-statistical-control criteria apply. A run chart for individual values W is
shown below. Does there appear to be a pattern suggesting that the process is not within statistical control? If
so, describe the pattern.

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Definitions:

Müller-Lyer Illusion

A visual illusion where lines of the same length appear to be different lengths due to arrow-like tails.

Ponzo Illusion

A visual illusion where two horizontal lines of identical length appear different in length because of converging parallel lines in the background.

Necker Effect

An optical illusion related to the perception of a two-dimensional drawing of a cube, which can spontaneously appear to switch orientation.

McCullough Effect

A phenomenon where prolonged exposure to colored gratings causes the visual system to adapt and see complementary colors in grayscale patterns.