106 Feeding habits of snow geese. Refer to the Journal of Applied Ecology feeding study of the relationship between the weight change y of baby snow geese and their digestion efficiency x , presented in Exercise 84 . The data for the study are saved in the SNOWGEESE file.

a. Fit the simple linear regression model to the data.

b. Do you recommend using the model to predict weight change y ? Explain.

c. Use the model to form a 95% confidence interval for the mean weight change of all baby snow geese with a digestion efficiency of x = 15,. Interpret the interval.