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Dataset Name: Wampler4 (Wampler4.dat)
File Format: ASCII
Certified Values (lines 31 to 50)
Data (lines 61 to 81)
Procedure: Linear Least Squares Regression
Reference: Wampler, R. H. (1970).
A Report of the Accuracy of Some Widely-Used Least
Squares Computer Programs.
Journal of the American Statistical Association, 65, pp. 549-565.
Data: 1 Response Variable (y)
1 Predictor Variable (x)
21 Observations
Higher Level of Difficulty
Generated Data
Model: Polynomial Class
6 Parameters (B0,B1,...,B5)
y = B0 + B1*x + B2*(x**2) + B3*(x**3)+ B4*(x**4) + B5*(x**5)
Certified Regression Statistics
Standard Deviation
Parameter Estimate of Estimate
B0 1.00000000000000 215232.624678170
B1 1.00000000000000 236355.173469681
B2 1.00000000000000 77934.3524331583
B3 1.00000000000000 10147.5507550350
B4 1.00000000000000 564.566512170752
B5 1.00000000000000 11.2324854679312
Residual
Standard Deviation 236014.502379268
R-Squared 0.957478440825662
Certified Analysis of Variance Table
Source of Degrees of Sums of Mean
Variation Freedom Squares Squares F Statistic
Regression 5 18814317208116.7 3762863441623.33 67.5524458240122
Residual 15 835542680000.000 55702845333.3333
Data: y x
75901 0
-204794 1
204863 2
-204436 3
253665 4
-200894 5
214131 6
-185192 7
221249 8
-138370 9
315911 10
-27644 11
455253 12
197434 13
783995 14
608816 15
1370781 16
1303798 17
2205519 18
2408860 19
3444321 20
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