Machine Hours and Electricity Costs for Wells Industries for the Year

question 61

Essay

Machine hours and electricity costs for Wells Industries for the year 2011 are as follows:
$\begin{array}{lcc} \underline{\text { Month }}& \underline{ \text { Machine Hours }} & \underline{\text { Electricity Costs }}\\\text { January } & 2,000 & \$ 9,200 \\\text { February } & 2,320 & 10,500 \\\text { March } & 1,520 & 6,750 \\\text { April } & 2,480 & 11,500 \\\text { May } & 3,040 & 14,125 \\\text { June } & 2,640 & 11,000 \\\text { July } & 3,280 & 12,375 \\\text { August } & 2,800 & 11,375 \\\text { September } & 1,600 & 7,750 \\\text { October } & 2,960 & 13,000 \\\text { November } & 3,760 & 15,500 \\\text { December } & 3,360 & 13,875\end{array}$
a.Using the high-low method,develop an estimate of variable electricity costs per machine hour.
b.Using the high-low method,develop an estimate of fixed electricity costs per month.
c.Using the high-low method,develop a cost function for monthly electricity costs.
d.Estimate electricity costs for a month in which 3,000 machine hours are worked.

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Definitions:

Refractory Period

A period immediately following an action (like a nerve impulse) during which a cell or organ cannot repeat that action, which in human sexuality refers to a recovery phase after orgasm during which it is physiologically impossible for a man to have additional orgasms.

Excitement Stage

The excitement stage is the initial phase in the sexual response cycle where physical and emotional sensations of arousal are heightened.

Sexual Response Cycle

A model that describes the sequence of physical and emotional changes that occur as a person becomes sexually aroused and participates in sexually stimulating activities, including phases such as excitement, plateau, orgasm, and resolution.

Masters and Johnson

Two pioneering sex researchers who conducted important research into the nature of human sexual response and sexual disorders.