Answer the given questions by analyzing the data below: 1. Graph the following data: Diameter (inches) Cost (dollars) 6 XXXXXXXXXX3.50 9 XXXXXXXXXX8.00 XXXXXXXXXX14.50 XXXXXXXXXX22.50 XXXXXXXXXX39.50...

1. Graph the following data:

Diameter (inches) Cost (dollars)

6 3.50

9 8.00

12 14.50

15 22.50

20 39.50

2. Perform the appropriate logarithmic transformation on the above data to get an equation.

3. Make a residual plot to support your choice for problem question no.2.

4. What is the correlation for the equation you found in problem question no.2?

5. What is extrapolation, and why shouldn’t we trust predictions using extrapolation?

6. What is interpolation?

7. What is a lurking variable?