The data on shell thickness and concentration of PCBs for 60 Anacapa pelican eggs from Exercise 4.70

Question:

The data on shell thickness and concentration of PCBs for 60 Anacapa pelican eggs from Exercise 4.70 are on the WeissStats CD.
a. Decide whether use of the linear correlation coefficient as a descriptive measure for the data is appropriate. If so, then also do parts (b) and (c).
b. Obtain the linear correlation coefficient.
c. Interpret the value of r in terms of the linear relationship between the two variables in question.