An article in Money looks at the relationship between people s
An article in Money looks at the relationship between people’s investments in large-cap stocks and international stocks. Suppose that the following data are available for a random sample of families, the percentage of the portfolio invested in large-cap stocks, and the percentage invested in international stocks:
Large-cap (%): 25 28 15 17 30 22 12 13 20
International (%): 30 32 23 25 40 29 17 21 32
Compute the Spearman rank correlation coefficient and test for the existence of a population correlation.
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