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76 lines
2.8 KiB
76 lines
2.8 KiB
NIST/ITL StRD
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Dataset Name: Longley (Longley.dat)
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File Format: ASCII
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Certified Values (lines 31 to 51)
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Data (lines 61 to 76)
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Procedure: Linear Least Squares Regression
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Reference: Longley, J. W. (1967).
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An Appraisal of Least Squares Programs for the
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Electronic Computer from the Viewpoint of the User.
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Journal of the American Statistical Association, 62, pp. 819-841.
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Data: 1 Response Variable (y)
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6 Predictor Variable (x)
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16 Observations
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Higher Level of Difficulty
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Observed Data
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Model: Polynomial Class
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7 Parameters (B0,B1,...,B7)
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y = B0 + B1*x1 + B2*x2 + B3*x3 + B4*x4 + B5*x5 + B6*x6 + e
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Certified Regression Statistics
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Standard Deviation
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Parameter Estimate of Estimate
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B0 -3482258.63459582 890420.383607373
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B1 15.0618722713733 84.9149257747669
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B2 -0.358191792925910E-01 0.334910077722432E-01
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B3 -2.02022980381683 0.488399681651699
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B4 -1.03322686717359 0.214274163161675
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B5 -0.511041056535807E-01 0.226073200069370
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B6 1829.15146461355 455.478499142212
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Residual
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Standard Deviation 304.854073561965
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R-Squared 0.995479004577296
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Certified Analysis of Variance Table
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Source of Degrees of Sums of Mean
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Variation Freedom Squares Squares F Statistic
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Regression 6 184172401.944494 30695400.3240823 330.285339234588
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Residual 9 836424.055505915 92936.0061673238
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Data: y x1 x2 x3 x4 x5 x6
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60323 83.0 234289 2356 1590 107608 1947
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61122 88.5 259426 2325 1456 108632 1948
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60171 88.2 258054 3682 1616 109773 1949
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61187 89.5 284599 3351 1650 110929 1950
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63221 96.2 328975 2099 3099 112075 1951
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63639 98.1 346999 1932 3594 113270 1952
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64989 99.0 365385 1870 3547 115094 1953
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63761 100.0 363112 3578 3350 116219 1954
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66019 101.2 397469 2904 3048 117388 1955
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67857 104.6 419180 2822 2857 118734 1956
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68169 108.4 442769 2936 2798 120445 1957
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66513 110.8 444546 4681 2637 121950 1958
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68655 112.6 482704 3813 2552 123366 1959
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69564 114.2 502601 3931 2514 125368 1960
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69331 115.7 518173 4806 2572 127852 1961
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70551 116.9 554894 4007 2827 130081 1962
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