Exhibit 16-4

question 44

Multiple Choice

Exhibit 16-4.The following data shows the cooling temperatures of a freshly brewed cup of coffee after it is poured from the brewing pot into a serving cup.The brewing pot temperature is approximately 180º F;see http://mathbits.com/mathbits/tisection/statistics2/exponential.htm For the assumed exponential model ln(Temp) = β₀ + β₁Time + ε,the following Excel regression partial output is available. Refer to Exhibit 16-4.What is the predicted coffee temperature in half an hour after the brewing?

• A)164.72
• B)-4.7904
• C)164.74
• D)120.42

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Definitions:

Average Total Cost

The total cost of production divided by the number of units produced, including both fixed and variable costs.

Range of Output

Refers to the variety of products or services produced by a company or industry.

Mixers

Devices used to blend or combine ingredients together, often found in kitchens or for industrial purposes.

Average Fixed Cost

The fixed costs of production (costs that do not change with output level) divided by the quantity of output produced.