Men’s weekly earnings 2013. This graph shows the quarterly median weekly earnings from the first quarter of 2003 through the first quarter of 2013 for men, 25 years of age or older, in the United States (U.S. Bureau of Labor Statistics; www.bls.gov).

Here are time series plots showing a 2-quarter moving average and an 8-quarter moving average.

Identify which plot is the 2-quarter moving average and which is the 8-quarter moving average. Explain why the better-fitting model fits better.