For your data set, use Excel to graph the purchasing power data you selected in Part I and find three models with the input being the number of years since 1910 and the output bein

For your data set, use Excel to graph the purchasing power data you selected in Part I and find three models with the input being the number of years since 1910 and the output being the purchasing power. You must find a (a) linear model, (b) Polynomial model of any order (whatever you want), and (c) an exponential or logarithmic model (again your choice – choose what looks best).

Explain which model is most accurate for each data set (re-watch my Accuracy of Models video if you need the review.) Be sure to copy all scatterplots with the regression model and equation (Just literally CTRL + C the graph and it should paste right into your word processor.)