Question: Consider the following data:
![304_70.png](https://secure.tutorsglobe.com/CMSImages/304_70.png)
a. Construct a scatter plot of the data. Determine the order of the polynomial that is represented by this data.
b. Obtain an estimate of the model identified in part a.
c. Conduct a test of hypothesis to determine if a third order, as opposed to a first-order, polynomial is a better representation of the relationship between y and x. Use a significance level of 0.05 and the p-value approach.