Technology Assignment 2

Consider the dataset below for lead residue as an effect of number of pistons in an engine:

Number of Pistons          Lead (Parts per Million)

             2                                  31
             4                                  25
             6                                  19
             7                                  21
             8                                  13
            10                                  7

Using SPSS, create a scatterplot of the data, graph the least-squares regression line, and find the correlation.
Are there any influential points (and how do you recognize them)?
How many parts per million of lead should we expect when there are five pistons? Be sure to export your outputs to a Word document in order to edit the graphs and statistics together and remove unnecessary computer code and notes.

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