stock计量经济第三版的实证E3.1Stata操作步骤，急求

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第一次用Stata，感觉好复杂啊，这道实证题不知道如何下手，求好心人讲解一下操作步骤，谢谢

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关键词：Stock Stata 计量经济 操作步骤 tock 好心人 如何

a.Compute the sample mean for average hourly earnings(AHE)in 1992 and in2012.Construct a 95% confidence interval for the population means of AHE in1992 and 2012 and the change between 1992 and 2012

b.In 2012,the value of the CPI was 215.2.In 1992,the value of the CPI was 140.3.Repeat (a) but use AHE measured in real 2012 dollars($2012);that is,adjust the 1992 data for the price inflation that occured between 1992 and 2012

c.If you were interested in the change in workers'purchasig power from 1992 to 2012,would you use the results from (a) or from (b)?Explain

d.Use the 2012 data to construct a 95% confidence interval for the mean of AHE for high school graduates.Construct a 95% confidence interval for the mean of AHE for workers with a college degree.Construct a 95% confidence interval for the difference between the two means.

e.Repeat (d) using the 1992 data expressed in $2012

f.Did real(inflation-adjusted) wages of high school graduates increase from 1992 to 2012?Explain.Did real wages of college graduates increase?Did the gap between earnings of college and high school graduates increase?Explain,using appropriate estimates,confidence intervals,and test statistics.

g.Prepare a similar table for high school graduates using the 1992 and 2012 data.Are there any notable differences between the results for high school and college graduates?

这是E3.1实证题所需数据

谁能帮帮忙啊，拜托了