Professor Murphy Wants to Set Up a Control Chart to Monitor

question 3

Multiple Choice

Professor Murphy wants to set up a control chart to monitor the percentage of absenteeism in his introductory statistics course (50 students are registered) . Absences per period for the last 15 class sessions are in the table below. $$\begin{array} { | l | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | } \hline \text { Session } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 \\\hline \text { Absent } & 5 & 0 & 2 & 2 & 3 & 8 & 10 & 3 & 5 & 5 & 1 & 2 & 0 & 2 & 3 \\\hline\end{array}$$ Calculate the empirical centerline for a p-chart to track absences.

• A).068
• B).072
• C).146
• D).202

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Definitions:

Myopia

A common vision condition also known as nearsightedness, where distant objects appear blurry while close objects can be seen clearly.

Hyperopia

A vision condition, also known as farsightedness, where distant objects are seen more clearly than nearby objects due to the eye's shape.

Ménière's Disease

A disorder of the inner ear that can lead to dizzy spells (vertigo) and hearing loss.

Cerumen Impaction

A condition where earwax accumulates to excessive levels within the ear canal, potentially leading to hearing loss, discomfort, or other complications.