Question

1. The following data represent the gestation period in days, z, of various animals along with their life expectancy in years, y. Animal Gestation Life Expectancy Animal Gestation Life Expectancy Cat 63 Lion Parakeet 108 18 Pig 115 Rabbit 31 Squirrel 44 10 Chicken 22 7.5 Dog 63 Duck28 Goat 151 10 10 12 The regression equation for predicting life expectancy frorn gestation is (a) Interpret the slope in context of the problem. 7.874 + 0.026z. b) Suppose a new animal species has been discovered. After breeding the species in captivity, it is determined that the gestation period is 95 days. Use the least-squares regression line to predict the life expectancy of the animal (c) Use the regression equation to predict the life expectancy of a parakeet. (d) Compute the residual for the parakeet.

Answer 1