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The following data on annual rates of return were collected from five stocks listed on the New York Stock Exchange ("the big board") and five stocks listed on NASDAQ. Assume the population standard deviations are the same. At the .10 significance level, can we conclude that the annual rates of return are higher on the big board?

NYSE NASDAQ
17.16 15.80
17.08 16.28
15.51 16.21
8.43 17.97
25.15 7.77

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