regression in class stuff

regression in class stuff - Speed (ft/sec) Steps per second...

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Speed (ft/sec) Steps per second 15.86 3.05 16.88 3.12 17.5 3.17 18.62 3.25 19.97 3.36 21.06 3.46 22.11 3.55 A= 15.86 1 B= 3.05 A Trans.= 15.86 16.88 17.5 18.62 19.97 21.06 22.11 16.88 1 3.12 1 1 1 1 1 1 1 17.5 1 3.17 18.62 1 3.25 C= 2520.605 132D= 435.4859 19.97 1 3.36 132 7 22.96 21.06 1 3.46 22.11 1 3.55 C Inv.= 0.031784 -0.59936 Answer 0.080284 -0.59936 11.44507 1.766077 A*X=B c^-1=inverse of c A^T*A*X=A^T*B C^T=transpose of C A^T*A=C A^T*B=D C*X C^-1*c*x=c^-1*d C^-1*D Good runners take more steps per second as they speed up. This data is for a group of top femle runners. Researchers recorded their speed and the average number of steps they took per second. 15 16 17 18 19 20 21 22 23 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 Column B
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Mass Rate 62 1792 62.9 1666 36.1 995 54.6 1425 48.5 1396 42 1418 47.4 1362 50.6 1502 42 1256 48.7 1614 40.3 1189 33.1 913 51.9 1460 42.4 1124 34.5 1052 51.1 1347 41.2 1204 51.9 1867 46.9 1439 Metabolic rate, the rate at which the body cosumes energy, is important in
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regression in class stuff - Speed (ft/sec) Steps per second...

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