Consider the following sample data: a. Construct a scatterplot for the data. b. It is possible to
Question:
Consider the following sample data:
a. Construct a scatterplot for the data.
b. It is possible to find many lines for which Σ1y - yn2 = 0. For this reason, the criterion Σ1y - yn2 = 0 is not used to identify the “best-fitting”
straight line. Find two lines that have Σ1y - yn2 = 0.
c. Find the least squares line.
d. Compare the value of SSE for the least squares line with that of the two lines you found in part
b. What principle of least squares is demonstrated by this comparison?
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Related Book For 
Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package
ISBN: 978-0134090436
13th Edition
Authors: James Mcclave ,Terry Sincich
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