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Exhibit 16-4

Question 2

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 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) = β<sub>0</sub> + β<sub>1</sub>Time + ε,the following Excel regression partial output is available. Refer to Exhibit 16-4.What is the percentage of variations in ln(Temp) explained by Time? A) 45.48% B) 97.01% C) 1.40% D) 46.88% For the assumed exponential model ln(Temp) = β0 + β1Time + ε,the following Excel regression partial output is available. 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) = β<sub>0</sub> + β<sub>1</sub>Time + ε,the following Excel regression partial output is available. Refer to Exhibit 16-4.What is the percentage of variations in ln(Temp) explained by Time? A) 45.48% B) 97.01% C) 1.40% D) 46.88% 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) = β<sub>0</sub> + β<sub>1</sub>Time + ε,the following Excel regression partial output is available. Refer to Exhibit 16-4.What is the percentage of variations in ln(Temp) explained by Time? A) 45.48% B) 97.01% C) 1.40% D) 46.88% Refer to Exhibit 16-4.What is the percentage of variations in ln(Temp) explained by Time?


A) 45.48%
B) 97.01%
C) 1.40%
D) 46.88%

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