Giraffes are believed to have excellent vision. Suppose that in a study of giraffe eye characteristics, data were collected for a sample of 27 giraffes. 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 ln(y)=0+1ln(x)+, where y represents an eye characteristic and x represents body mass (measured in kilograms). For this model, the slope 1 represents the percentage change in y for every 1% increase in x.

Giraffes are believed to have excellent vision. Suppose that in a study of giraffe eye characteristics, data were collected for a sample of 27 giraffes. 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) = Po + B, In (x) + , where y represents an eye characteristic and x represents body mass (measured in kilograms). For this model, the slope , represents the percentage change in y for every 1% increase in x. Complete parts a and b below. a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 99% confidence interval for , : (0.26,0.29). Give a practical interpretation of this interval. We are % confident that for every 1% increase in the increase in will be between _and. (Type integers or decimals. Do not round. Use ascending order.) b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded the following 99% confidence interval for By : ( - 0.13, - 0.07). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in will be between and (Type integers or decimals. Do not round. Use ascending order.)a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 99% confidence interval for B, : (0.26,0.29). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in will be between ] and (Type integers or decimals. Do not round. Use ascent b. For the eye characteristic y = orbit axis angle (degr n yielded the following 99% confidence interval for By: ( -0.13, - 0.07). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in In (eye mass), Ise in will be between ] and]. (Type integers or decimals. Do not round. Use ascent In (body mass), body mass, eye mass,a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 99% confidence interval for By : (0.26,0.29). Give a practical interpretation of this interval. We are % confident that for every 1% increase in the increase in will be between and . (Type integers or decimals. Do not round. Use ascending order.) b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yield dence interval for By : ( - 0.13, - 0.07). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in In (eye mass) tween and. (Type integers or decimals. Do not round. Use ascending order.) body mass In (body mass) eye massa. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 99% confidence interval for B, : (0.26,0.29). Give a practical interpretation of this interval. We are % confident that for every 1% increase in the increase in will be between _and . (Type integers or decimals. Do not round. Use ascending order.) b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded the following 99% confidence interval for By : ( -0.13, -0.07). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in will be between and (Type integers or decimals. Do not round. Use ascent In (body mass), In (orbit axis), orbit axis, body mass,a. For the eye characteristic y = eye mass (grams), the regression equation yielded the following 99% confidence interval for P, : (0.26,0.29). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in will be between and (Type integers or decimals. Do not round. Use ascending order.) b. For the eye characteristic y = orbit axis angle (degrees), the regression equation yielded the following 99% confidence interval for By : ( - 0.13, - 0.07). Give a practical interpretation of this interval. We are |% confident that for every 1% increase in the increase in will be between and (Type integers or decimals. Do not round. Use ascending order.) In (orbit axis) body mass In (body mass) orbit axis