SPSS project Assignment Example | Topics and Well Written Essays - 2000 words

SPSS project - Assignment Example Respondents aged less than 35 years old for both male and female was 28% and 31% respectively. 55.6% of the respondents reported to be married/common law, 32.3% were single and another 12.1% were either separated, widowed or divorced. The female respondents topped the list with the highest percent (39.3%) of separated/widowed/divorced while the male respondents led in the percentage of the married/common law couples. Only 0.2% of the male respondents reported to have been divorced. At the same time, the percent of male and female single respondents was reported to be 34% and 28.5% respectively. The respondents’ income ranged from below $15,000 to over $65,000 with majority of the respondents (32.6%) being in the income bracket of $55,000-$64,999. Only 5.7% of the respondents interviewed reported to earn below $15,000. In summary, 62.8% of the respondents interviewed said to earn an annual income of $45,000 and above. The P-value for the Chi-Square test is 0.0000.05 (significance level), leading us to fail rejecting the null hypothesis. The results for this analysis therefore show that there is no association between taking Delta and the marital status of the respondent. The P-value for the Chi-Square test is 0.000

Land remediation Essay Example | Topics and Well Written Essays - 750 words

Land remediation - Essay Example Spills and leakages occur in all these situations and cause contamination of soil and ground water. Authors Malawska and Wiokomirski confirmed high presence of polycyclic aromatic hydrocarbons (PAH) and heavy metals (like Pb, Cd, Cu, Zn, Hg, Fe, Co, Cr, and Mo) in railway sidings in Poland (Malawska M & Wiokomirski B, 2001). Volatile and semi-volatile organic compounds (VOC) are the other common contaminants resulting from the use of hydrocarbons. The specified site condition indicates sandy soil to a significant depth and water table at relatively shallow depth of 3.2m. Thus we can expect the highly permeable sandy soil and ground water to be contaminated with PAH, heavy metals and VOC. industrial sheds for production and storage, network of roads for movement of people and materials, utility services for power and water supply, common effluent treatment plant etc., among other things. A large number of people work in such areas for long hours and are exposed to pollution that is present in air, water and soil. While the industrial sheds may be constructed with impermeable floors per se, such is not the case with the open spaces of an industrial estate that may be used as storage areas, common areas, landscaping and gardening, for roads / utility lines etc. Hence land remediation is necessary. Options available for remediation in this situation are soil vapor extraction (SVE) technique and land refill. Land refill would involve extensive excavation and removal of the contaminated soil and refilling. This is a very expensive operation, especially in view of the presence of contaminated ground water at shallow depths, which in any case needs to be cleaned up before use. Finding a suitable place for the extracted soil will also be an issue. Soil vapor extraction involves vaporizing and extracting the volatile