Eye anatomy of giraffes. Refer to the African Zoology (Oct. 2013) study of giraffe eye characteristics,...

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Eye anatomy of giraffes. Refer to the African Zoology (Oct. 2013) study of giraffe eye characteristics, Exercise 11.71 (p. 615). Recall that the researchers fit a simple linear regression equation of the form In (y) : Bo + B₁ In (x) + ε, where y represents an eye characteristic and x represents body mass (measured in kilograms). = a. For the eye characteristic y = eye mass (grams), the regression equation yielded ² = .948. Give a practical interpretation of this result. b. Refer to part a above and Exercise 11.71 part a. Find the value of the correlation coefficient, r, and interpret its value. = .375. Give a practical c. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded ² interpretation of this result. d. Refer to part c above and Exercise 11.71 part b. Find the value of the correlation coefficient, r, and interpret its value. (Reference Exercise 11.71) Eye anatomy of giraffes. Giraffes are believed to have excellent vision. The journal African Zoology (Oct. 2013) published a study of giraffe eye characteristics. Data were collected for a sample of 27 giraffes inhabiting southeastern Zimbabwe. Of interest to the researchers was how these eye characteristics relate to a giraffe's body mass. They fit a simple linear regression equation of the form In (y) = P + B₁ In(x) + &, where y represents an eye characteristic and x represents body mass (measured in kilograms). For this model, the slope b1 represents the percentage change in y for every 1% increase in x. a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 95% confidence interval for B₁: (.25, .30). Give a practical interpretation of this interval. b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded the following 95% confidence interval for B₁: (-.14,-.05). Give a practical interpretation of this interval. Eye anatomy of giraffes. Refer to the African Zoology (Oct. 2013) study of giraffe eye characteristics, Exercise 11.71 (p. 615). Recall that the researchers fit a simple linear regression equation of the form In (y) : Bo + B₁ In (x) + ε, where y represents an eye characteristic and x represents body mass (measured in kilograms). = a. For the eye characteristic y = eye mass (grams), the regression equation yielded ² = .948. Give a practical interpretation of this result. b. Refer to part a above and Exercise 11.71 part a. Find the value of the correlation coefficient, r, and interpret its value. = .375. Give a practical c. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded ² interpretation of this result. d. Refer to part c above and Exercise 11.71 part b. Find the value of the correlation coefficient, r, and interpret its value. (Reference Exercise 11.71) Eye anatomy of giraffes. Giraffes are believed to have excellent vision. The journal African Zoology (Oct. 2013) published a study of giraffe eye characteristics. Data were collected for a sample of 27 giraffes inhabiting southeastern Zimbabwe. Of interest to the researchers was how these eye characteristics relate to a giraffe's body mass. They fit a simple linear regression equation of the form In (y) = P + B₁ In(x) + &, where y represents an eye characteristic and x represents body mass (measured in kilograms). For this model, the slope b1 represents the percentage change in y for every 1% increase in x. a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 95% confidence interval for B₁: (.25, .30). Give a practical interpretation of this interval. b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded the following 95% confidence interval for B₁: (-.14,-.05). Give a practical interpretation of this interval.

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Sol Given Any Ro Riln 1 characteristic x represents body mass kilograms ... View the full answer