Math 216 Fal 2017 onine Test: Chapter 4, 5, 6 Time Remaining: 03.5829 Submit Tes

Question

Math 216 Fal 2017 onine Test: Chapter 4, 5, 6 Time Remaining: 03.5829 Submit Test This Question: 1 pt 37of60 ( 18 complete) This Test: 60 pts possible Suppose a doctor measures the height. x, and head arrumference, y, de a chihen and oetanste data below the cereason coefbet h127 and the squares regession line is y137x+13 568 Complete parts (a) and (b) below Head (e) Compute the coeflicient of determination R R,%(Rond to one decimal place as needed) (b) Interpret the coefficient of determination and comment on the adequacy of the Inear model OA, R2 ofthe variation n head circumference is not "plained by the 27 75 25 50 25 75 27 00 Circumference, y O B. R2 ofthe variation i, head circumderence is explained by the least-squares regression equation. The inear model appears to be appropriate least-squares regression equation The lnear model appears to be approprian O D. R2 o the variation in head circumference is explained by the least-squares regression equation The linear model appears to be not appropriatse OC R2 ofthe variatrin head circumference is not explained by the least-squares regression equation The linear model appears to be not appropriate Click to select your answers 1 Pre-Test

Explanation / Answer

Solution:-

a) R^2 = 0.827^2 = 0.6839 = 68.4%

b) option B. R^2 of the variation in head circumference is explained by the east suares regressions equation.the linear model appears to be appropriate.

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