Part 2 (6 Points):
All Calculations must be done in R using the excel document Gas_Consumption.xlsx:
1) Plot X=Income and Y=Gas Consumption.
2) Describe plot #1 and what you notice about the plot?
3) Calculate the Regression Line of #1.
4) Is the X-variable statistically significant?
5) What does the intercept mean?
6) Explain the sign of the intercept and coefficients.