Stat I Review for Finai Eam.po x 7) The early human ancestors were similar in sh

Question

Stat I Review for Finai Eam.po x 7) The early human ancestors were similar in shape to most large primates. The data below are average male and their ancestors.) The relatively short hind limbs are thought to represent evolutionary specialization for vertical climbing hind limb and forelimb lengths for different species of early homonins (humans Hind limb and Forelimb lengths Hind limb Length (mm) 471 361 Forelimb Length (mm) 458 514 581 739 553 614 595 557 553 574 857 What is the equation of the least squares line describing the relationship between xs hind limb length and y = forelimb length. MacBook Air

Explanation / Answer

The regression equation is

ya=+bx

from Excel

The fitted model is

y hat=482.93+0.17(hind limb)

SUMMARY OUTPUT Regression Statistics Multiple R 0.329456 R Square 0.108541 Adjusted R Square -0.06975 Standard Error 91.17666 Observations 7 ANOVA df SS MS F Significance F Regression 1 5060.942 5060.942 0.608785 0.470551 Residual 5 41565.91 8313.183 Total 6 46626.86 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept 482.9383 128.0255 3.772203 0.012993 153.8382 812.0383 153.8382 812.0383 Hind limb 0.178534 0.228818 0.780247 0.470551 -0.40966 0.76673 -0.40966 0.76673

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