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. The data for the study are saved in the SNOWGEESE file.

In Exercise 11.84

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.

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Weight Digestion Change Eficiency Detergent Acid Feeding Trial Diet Fiber (%) 28.5 27.5 27.5 32.5 32 1 Plants 2 Plants 2.5 Plants 4 Plants 5 Plants 38 Duck Chow 39 Duck Chow 12 40 Duck Chow 41 Duck Chow 42 Duck Chow 59 52.5 75 72.5 69 8.5 8.5 10.5 14 6.5