Walgreen Company reported the following earnings per share from 1989 to 1994. Year EPS 1989 $1.28 1990 $1.42 1991 $1.58 1992 $1.78 1993 $1.98 1994 $2.30

a. Estimate the arithmetic average and geometric average growth rate in earnings per share between 1989 and 1994. Why are they different? Which is more reliable? b. Estimate the growth rate using a linear growth model. c. Estimate the growth rate using a log-linear growth model.