5.4 According to Towers Watson, (https://www

.towerswatson.com/), at large employers, 48% of employees earning between $10,000 and $24,999 a year participated in a voluntary retirement savings program, compared to 91% who earned more than $100,000. We can view savings as a good. In a figure, plot savings versus all other goods. Show why a person is more likely to “buy” some savings (put money in a retirement account) as his or her income rises.