2 Dataset Name: BoxBOD (BoxBOD.dat)
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5 Starting Values (lines 41 to 42)
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6 Certified Values (lines 41 to 47)
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7 Data (lines 61 to 66)
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9 Procedure: Nonlinear Least Squares Regression
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11 Description: These data are described in detail in Box, Hunter and
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12 Hunter (1978). The response variable is biochemical
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13 oxygen demand (BOD) in mg/l, and the predictor
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14 variable is incubation time in days.
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17 Reference: Box, G. P., W. G. Hunter, and J. S. Hunter (1978).
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18 Statistics for Experimenters.
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19 New York, NY: Wiley, pp. 483-487.
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25 Data: 1 Response (y = biochemical oxygen demand)
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26 1 Predictor (x = incubation time)
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28 Higher Level of Difficulty
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31 Model: Exponential Class
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32 2 Parameters (b1 and b2)
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34 y = b1*(1-exp[-b2*x]) + e
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38 Starting values Certified Values
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40 Start 1 Start 2 Parameter Standard Deviation
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41 b1 = 1 100 2.1380940889E+02 1.2354515176E+01
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42 b2 = 1 0.75 5.4723748542E-01 1.0455993237E-01
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44 Residual Sum of Squares: 1.1680088766E+03
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45 Residual Standard Deviation: 1.7088072423E+01
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46 Degrees of Freedom: 4
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47 Number of Observations: 6
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