又一道R语言的题请大家帮忙

a) Compute an estimate ρ ̂ for the correlation coefficient ρ of X1 and X2 using the data.  What was the formula you used for this calculation?
b) Compute the mean of all bootstrap means and discuss.  You may wish to look at some plots of the distributions of the bootstrap replicates.
c) Compute the bootstrap estimate for the bias using B=1000 replications.
d) Compute the bootstrap estimate for the standard error using B=1000 replications.
e) Compute the 95% Bootstrap t Confidence Interval for ρ using B=1000 bootstrap replicates.
f) Compute the 95% Bootstrap Percentile Confidence Interval for ρ using B=1000 bootstrap replicates.
g) Compute the jackknife estimate for the bias.
h) Compute the jackknife biased corrected estimate for ρ.
i) Compute the Jackknife t Confidence Interval for ρ.
j) Comment on the performance of the three confidence interval methods in parts e), f) and i).  
数据的一小部分：

1. x1         x2
   
2. 0.0086  0.0288
   
3. 1.0168  0.6231
   
4. 0.3603  0.2094
   
5. 1.8832  0.6499
   
6. 0.0004  1.0448
   
7. 0.0204  0.8866
   
8. 0.9163  0.7395
   
9. 0.4696  0.9307
   
10. 0.9026  0.5497
    
11. 0.105    0.2519
    
12. 2.3957  1.2693
    
13. 0.0249  0.6393
    
14. 1.1078  2.4835
    
15. 1.2262  1.9644

复制代码

Proj3_prob3.txt (5.8 KB)

2011-12-8 05:48:50 上传

完整的数据我上传了附件。

总之请各位高手帮忙搞定这题了。