In the situation of problem 10 11 test for the existence
In the situation of problem 10–11, test for the existence of a linear relationship between the two variables.
In problem An article in the Journal of Monetary Economics assesses the relationship between percentage growth in wealth over a decade and a half of savings for baby boomers of age 40 to 55 with these people's income quartiles. The article presents a table showing five income quartiles, and for each quartile there is a reported percentage growth in wealth. The data are as follows.
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