简单的计量经济学作业

Using appropriate software, produce two separate histograms for the wage rates
of males and females respectively. Use an appropriate number of bins for your
histogram and remember to label the axes. Describe and compare the shape of
the histograms, including the central location, dispersion and skewness. [2 marks]
2. Using appropriate software, produce a scatterplot of wage rates against years of
education using your sample. Compute the sample correlation and comment on
the degree of association. No need to show your computational steps. [2 marks]
3. Carry out a t-test for linear association between wage rates and years of education.
Make sure you report your null and alternative hypotheses, the test statistic,
decision rule, and conclusion to the test. [2 marks]
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