OpenStax, Statistics §12.5 Outliers · Example 3 · Statistics · Regression & correlation
Outliers · Example 3
(a) Draw a scatter plot of the data.
(b) Calculate the least-squares line. Write the equation in the form ŷ = a + bx.
(c) Draw the line on a scatter plot.
(d) Find the correlation coefficient. Is it significant?
(e) What is the average CPI for the year 1990?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Statistics · §12.5 Outliers · Example 3
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