Res/341 Descriptive Statistics Paper

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Descriptive Statistics Darlen Mangano, Thamar Manuel, Geraldine Portuhondo, and Karen Rivas RES/341 April 16, 2012 Professor Gustavo A. Diaz Descriptive Statistics Analyzing studies in wage differentials between individuals with postsecondary education and those without show a strong case for education. The studies will indicate how skill strengths play a role in higher earnings. Research data from two studies will be used to calculate measures of central tendency, dispersion, and skew of data. In demonstrating descriptive statistical methods, data measured from the second study will be shown through a histogram and frequency distribution calculations in tabular and graphical outputs respectively. The information in these studies will…show more content…
The studies done show relative wage displaying high school at the equivalent of zero and median, ninetieth, and tenth wage percentiles by years of education in 1973- 1975 and 2003-2005 (Lemieux, 2006, p. 196). Additionally, the medium represents the fiftieth percentile showing that education has become an integral part in determining wages over the course of time (Lemieux, 2006, p. 196). In comparison, Team B conducted studies of data provided with 100 student samples. The measures of central tendency and dispersion, which measure the mean, median, mode, range, variance, deviation and standard deviation where calculated to show relevance with the studies done by Lemieux. The descriptive statistics tables shown below serve as the starting point providing valuable information to reason out result. The sample of 100 students were arranged by age increments on the table below to show the levels of education completed by age. Countif formulas were used to create the table in Figure 2 below. Age | Frequency | 0 - 10 | 0 | 11 - 21 | 5 | 22 - 32 | 33 | 33 - 43 | 29…show more content…
By using the confidence interval of 99% the results are as follows: The mean wage used is $30,833.46 with a standard deviation of 16.947.10 and the sample size is 100. The lower wage is 26,468.18 and the upper wage is 35,198.744. The mean education in years used is 12.73 with a standard deviation of 2.79 and sample size of 100. The lower education in years is 12.011 and the upper education in years is 13.45. The mean age is 39.11 with a standard deviation of 12.57 and a sample size of 100. The lower age is 35.872 and the upper age is
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