An Operator Collected the Following Time Series Data from a Process

question 47

Essay

An operator collected the following time series data from a process: $$\begin{array} { l l l l l l l l } 4.0 & 4.4 & 4.3 & 4.5 & 4.6 & 4.2 & 4.1 & 4.5\end{array}$$ (A) Determine the number of A/B runs.
(B) Determine the number of up/down runs.

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Definitions:

Xerophthalmia

A medical condition characterized by dry eyes, often caused by a deficiency in vitamin A.

Trichiasis

A condition where eyelashes grow inward, potentially irritating the eye.

Emmetropia

The condition of the eye where the optical system is perfectly matched to the length of the eyeball, resulting in sharp vision at all distances.

Visual Acuity

The clarity or sharpness of vision, often measured by the ability to discern letters or numbers at a standardized distance on an eye chart.