Question: Importance of Graphing. Exercises 9 and 10 provide two data sets from “Graphs in Statistical Analysis,” by F.J. Anscombe, The American Statistician, Vol. 27, for each exercise,

a. Construct a scatterplot

b. Find the value of the linear correlation coefficient r, then determine whether there is sufficient evidence to support the claim of a linear correlation r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables.

c. Identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot.