# 120PS1 - Problem Set 1 Econometrics 120A Due Monday Oct 11...

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Problem Set 1 - Econometrics 120A Due Monday Oct 11 1. The file GDPC1.xls contains quarterly growth numbers for the US economy between the 1947 and 2007. Download this file from the class WebCT. The file contains a column with the level of GDP in Real Billions of Dollars, and a column with GDP growth, which can be turned into percentages by multiplying by 100. We want to understand the performance of the US economy over the last 60 years. (NOTE: For this question you may find the Excel handout at WebCT helpful). (a) Calculate the mean and median of the distribution of GDP growth. (b) What do you infer about skewness from the calculations in (a)? (c) Calculate the Variance and Mean Squared Deviation of GDP growth. Why are these numbers
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