The following information is from a report on the determinat…
The following information is from a report on the determination of silver content of galena crystals grown in a closed hydrothermal system over a range of temperatures. Let x denote the crystallization temperature in degrees centigrade, and Y the silver content in mol%. A simple linear regression was fitted for Y verses x. The observed data are as follows: x 398 292 352 575 568 450 550 408 484 350 503 600 y 0.15 0.05 0.23 0.43 0.23 0.4 0.44 0.44 0.45 0.09 0.59 0.63 Some summary statistics from the regression analysis are as follows: The least squares estimates of the intercept and the slope parameters, respectively, are:
Read DetailsPolynomial models of degree 1 to 6 were fitted to a set of n…
Polynomial models of degree 1 to 6 were fitted to a set of n=100 obesrvations of (x,y) pairs. Fitted models and a scatterplot of the data are shown below. The information obtained is from R. Polynomial Degree SSR AIC BIC 1 149.85 478.36 486.18 2 156.43 479.36 489.78 3 401.20 434.34 447.36 4 401.64 436.23 451.86 5 418.89 433.90 452.14 6 418.92 435.90 456.74 SST=808.9614 The value of the adjusted R2 for the fourth degree polynomial model is closest to:
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