The article The Lead Content and Acidity of Christchurch Precipitation (N. Zeal. J. of Science, 1980: 311-312)

Question:

The article "The Lead Content and Acidity of Christchurch Precipitation" (N. Zeal. J. of Science, 1980: 311-312) reports the accompanying data on lead concentration (mg/L) in samples gathered during eight different summer rainfalls: 17.0, 21.4, 30.6, 5.0, 12.2, 11.8, 17.3, and 18.8. Assuming that the lead-content is symmetric, use the Wilcoxon signed-rank interval to obtain a 95% CI for m.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...