Exhibit 4-1
a Hospital Emergency Room Requires Different Numbers of Nurses

question 21

Essay

Exhibit 4-1
A hospital emergency room requires different numbers of nurses on different days of the week. The number of full-time employees required to be working (i.e. not on call) each day is given in the table below.
$\begin{array}{|l|l|l|l|l|l|l|}\hline \text { Mon } & \text { Tue } & \text { Wed } & \text { Thu } & \text { Fri } & \text { Sat } & \text { Sun } \\\hline 18 & 15 & 12 & 13 & 20 & 28 & 22\\\hline \end{array}$ Hospital rules require that nurses work four consecutive days, are on call for one day, and then receive two days off. The hospital wants to meet its daily requirements, while minimizing the number of nurses that must be on staff.
-Refer to Exhibit 4-1.Use Solver to formulate and solve the hospital's problem.

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Definitions:

Coefficient of Correlation

A statistical measure that computes the strength and direction of a linear relationship between two variables.

Direction

The course along which someone or something moves, or a particular position or orientation regarding space or time.

Coefficient of Correlation

A numerical measure that denotes the strength and direction of a linear relationship between two variables.

Linear Relationship

describes a direct proportionality between two variables, meaning as one variable increases or decreases, the other does so in a constant rate.