Joanne has built three predictive models using sufficiently large data sets with associated mean absolute deviations:

1. a weighted moving average (MAD =22.4)

2. a simple moving average (MAD =48.2), and

3. a linear regression (MAD = 8.05),

which model observed the best fit and thus likely makes the most accurate predictions?

a. none of the models fits the data

b. the models are equilent as MAD is not a measure of fit

c. model 1

d. model 2

e. no determination can be made with the information provided

f. model3