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商科代写/金融代写 Quantitative Methods for Risk Analysis

更新日期:8月 20

留学生作业代写|商科作业代写|金融作业代写|统计代写|CS代写


这是一个使用R语言建立模型分析数据的作业

部分要求如下:

1. Create a new variable, log of wage, and store in the data set (or data frame) “Wage”. Report summary statistics of wage and log wage.

2. Compare mean and median of wage and discuss why they are different or similar (less than 30 words). Compare mean and median of log wage and discuss why they are different or similar (less than 30 words).

3. Obtain and provide histogram of wage and log wage, separately.

4. Conduct nonparametric bootstrap to obtain the 95% confidence intervals for the mean of wage and log wage. Set the number of repetitions for Bootstrap to be 5000 (B=5000). Compare lengths of the confidence intervals and discuss uncertainty of the estimators of mean of wage and log wage (less than 30 words).

5. Obtain a box plot of wage for each education level (education). (not log wage here) 6. Estimation two linear regression model: 1st. regressing wage on age and education level (dummies). 2nd. regressing log(wage) on log(age) and education level (dummies). Provide the estimation results. (a) Interpret effects of age on wage at the first regression (less than 30 words).

(b) Interpret effects of post graduate education (Advanced Degree) on wage at the first regression (less than 30 words).

(c) Interpret effects of age on wage at the second regression (less than 30 words).

In this question, you analyse a data set on the number of new infections (positive cases) in