[Steps Shown] Importance of Graphing. Exercises 9 and 10 provide two data sets from "Graphs in Statistical Analysis," by F J Anscombe, The American Statistician,


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

X Y
10 9.14
8 8.14
13 8.74
9 8.77
11 9.26
14 8.1
6 6.13
4 3.1
12 9.13
7 7.26
5 4.74
  1. Construct a scatterplot.
  2. Find the value of the linear correlation r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables.
  3. identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot

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