Consider the following time series data.

Week	1	2	3	4	5	6
Value	18	13	16	11	17	14

The following are the results using 2 different methods as the forecast for the next week:

		Nave method (most recent value)		Average of all the historical data
a.	Mean absolute error	4.40		2.73
b.	Mean squared error	20.80		10.86
c.	Mean absolute percentage error	31.88	%	21.17	%

Which method appears to provide the more accurate forecasts for the historical data?

- Select your answer -Nave method (most recent value)Average of all the historical dataItem 1

Explain.

The MAE, MSE, and MAPE using the average of all historical data are all - Select your answer -greater or less than the MAE, MSE, and MAPE using the naive method.