Statistics questions Assignment Example | Topics and Well Written Essays - 1500 words

Statistics questions - Assignment Example (a) From the box plot and the table presented, it is evident that the most deprived group exhibits the most variability in employment scale. An evaluation of the minimum and maximum value says it all. Similarly, the standard deviation backs the conclusion. It is evident that the minimum and maximum values for the least deprived and most deprieved are 1681, 3811 and 5000, 90780 respectively. The standar deviation for the least deprieved group was 649.67 while that for the most deprieved group was 20,388. (b) Measure of central tendancy are used to give readers an overview about the data. In this paper, there is a huge difference between the mean and median for the most deprived group. This can be explained by the fact that there are outliers at both side, too large data and too small data. In order to best represent the center of the employment scale values for the most deprived group, I will use mean since the data is derived from a large sample size. (c) Based on the findings above where the calculated t is in the acceptable region the null hypothesis is accepted at 5.0% level. Therefore, the percentage of adults supporting the healthcare law at the end of March is significantly higher than the percentage who supported the law in November (d) There are a number of factors that contribute to significant changes in the findings of research that study the same issue using data from a sample derived from the same population. In this case, it was established that there was a conflicting conclusionarrived by two major polls. The major explanation can be on the wording used on questions to collect the relevant data. The AP-GfK poll provided respondents with three options support, oppose and neither support nor oppose. The other poll provided respondents with only two option, oppose and support. This usually gives different data hence findings. More importantly, the timing is another significant factor. Polls conducted before a

Social networking site does more bad than good Essay

Social networking site does more bad than good - Essay Example Evidence exists that the use of these sites has a negative effect on individual lives. A research done concluded that longer use of internets had a strong association with â€Å"increased depression, loneliness, and smaller social circles† (Ahn 1441). The effect occurs, as individuals are mostly isolated from their friends and families due to heavy reliance on SNS. As a result, such individuals psychological well-being is affected. Secondly, SNS have been found to affect student’s performance in schools. The effect has been noted in reduced grades to persistent users of these sites. For example, in one of a conference paper by Karpinski (2009), it noted that college Facebook users have lower GPAs as compared to nonusers of the site (Ahn 1442). The argument was that users are most likely to spend longer time at the expense of studying. On the other hand, these sites have led to cyber bullying. Perpetrators of cyber bullying have significantly used these sites (Jung 1). Hence, those that use these sites especially kids are more prone to cyber bullying. Usually, perpetrators hide their real identities to terrorize victims (Jung 1). The vulnerable kids are likely to develop mental problems and sometimes even contemplate committing suicide. Ahn, June. â€Å"The Effect of Social Network Sites on Adolescents’ Social and Academic Development: Current Theories and Controversies.† Journal of the American Society for Information Science and Technology 62(8) (2011): 1435-1445.