7.3.6

The economic dynamism, which is the index of productive growth in dollars for countries that are designated by the World Bank as middle-income are in table #7.3.8 ("SOCR data 2008," 2013).Countries that are considered high-income have a mean economic dynamism of 60.29.Do the data show that the mean economic dynamism of middle-income countries is less than the mean for high-income countries?Test at the 5% level.

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