DO&IT Business Analytics and Big Data Tenure-Track Faculty Search Speaker:
... Since likes, comments, and retweets are count variables, and since potential endorsers can selfselect to participate in multiple campaigns, we propose a Poisson lognormal model with sample selection and correlated random effects to analyze variations in participation and effectiveness. There are thr ...
... Since likes, comments, and retweets are count variables, and since potential endorsers can selfselect to participate in multiple campaigns, we propose a Poisson lognormal model with sample selection and correlated random effects to analyze variations in participation and effectiveness. There are thr ...
A Few Sources for Data Examples Used
... average or the range of values, can help us understand the data? Example: What is the average nickel concentration in the SF effluent data, and how much variability is there? Question 2: Are there individual data values that provide interesting information because they are unique or stand out in som ...
... average or the range of values, can help us understand the data? Example: What is the average nickel concentration in the SF effluent data, and how much variability is there? Question 2: Are there individual data values that provide interesting information because they are unique or stand out in som ...
Attribute Types
... Some classification algorithms only accept categorical attributes. Reduce data size by discretization ...
... Some classification algorithms only accept categorical attributes. Reduce data size by discretization ...
Converting Point Estimates for Cost-Risk Analysis
... between the estimate and the production of the product and delivery to the customer. A cost-risk analysis would help the supplier to better evaluate the risk to achieve the cost utilized in the preparation of the quote. The solution to the problem would be to perform a formal cost-risk analysis. The ...
... between the estimate and the production of the product and delivery to the customer. A cost-risk analysis would help the supplier to better evaluate the risk to achieve the cost utilized in the preparation of the quote. The solution to the problem would be to perform a formal cost-risk analysis. The ...
Essential Statistics 1/e
... • Histograms with 5 bins (suggested by Sturge’s Rule) and 10 bins are shown below. ...
... • Histograms with 5 bins (suggested by Sturge’s Rule) and 10 bins are shown below. ...
Bell-shaped distribution
... •Larger influence on mean than median. •High outliers and data skewed to the right will increase the mean. •Low outliers and data skewed to the left will decrease the mean. Ex: Suppose ages at death of your eight greatgrandparents are: 28, 40, 75, 78, 80, 80, 81, 82. Skewed to the left, so mean is l ...
... •Larger influence on mean than median. •High outliers and data skewed to the right will increase the mean. •Low outliers and data skewed to the left will decrease the mean. Ex: Suppose ages at death of your eight greatgrandparents are: 28, 40, 75, 78, 80, 80, 81, 82. Skewed to the left, so mean is l ...
Values in science: Cognitive-affective maps
... objectivity in the assessment of scientific hypotheses. The adoption of these values was a crucial part of the Scientific Revolution and the Enlightenment of the 16th through 18th centuries, and the values have remained important in the current practice of science. Today, however, they are challenge ...
... objectivity in the assessment of scientific hypotheses. The adoption of these values was a crucial part of the Scientific Revolution and the Enlightenment of the 16th through 18th centuries, and the values have remained important in the current practice of science. Today, however, they are challenge ...
Descriptive Statistics: Box Plot
... Box plots or box-whisker plots give a good graphical image of the concentration of the data. They also show how far from most of the data the extreme values are. The box plot is constructed from ve values: the smallest value, the rst quartile, the median, the third quartile, and the largest value. ...
... Box plots or box-whisker plots give a good graphical image of the concentration of the data. They also show how far from most of the data the extreme values are. The box plot is constructed from ve values: the smallest value, the rst quartile, the median, the third quartile, and the largest value. ...
pdf - Vassar College
... ments John Chance’s influential analysis of the diverging fortunes of colonial native elites in Puebla, the Zapotec Sierra, and the Valley of Oaxaca. After the death of the last Zaachila ruler known as Rain God Flint-Knife, his son Bichana Lachi was baptized as Don Juan Cortés. He led a Zapotec sta ...
... ments John Chance’s influential analysis of the diverging fortunes of colonial native elites in Puebla, the Zapotec Sierra, and the Valley of Oaxaca. After the death of the last Zaachila ruler known as Rain God Flint-Knife, his son Bichana Lachi was baptized as Don Juan Cortés. He led a Zapotec sta ...
Measures of Central Tendency and Variation Measures of Central
... An outlier is an extreme value that is much less than or much greater than the other data values. Outliers have a strong effect on the mean and standard deviation. If an outlier is the result of measurement error or represents data from the wrong population, it is usually removed. There are differen ...
... An outlier is an extreme value that is much less than or much greater than the other data values. Outliers have a strong effect on the mean and standard deviation. If an outlier is the result of measurement error or represents data from the wrong population, it is usually removed. There are differen ...
Chapter 1: The sociological perspective - Assets
... mechanical solidarity to those based on organic solidarity represented a major social change. However, his writings lack a clear explanation of why this change occurs and his ideas are based on only a limited amount of historical evidence. Durkheim’s ideas also imply that social order comes about ma ...
... mechanical solidarity to those based on organic solidarity represented a major social change. However, his writings lack a clear explanation of why this change occurs and his ideas are based on only a limited amount of historical evidence. Durkheim’s ideas also imply that social order comes about ma ...
Chapter 2 Slides
... The value of the kth percentile is midway between the Lth value and the next value in the sorted set of data. Find Pk by adding the L th value and the next value and dividing the total by 2. ...
... The value of the kth percentile is midway between the Lth value and the next value in the sorted set of data. Find Pk by adding the L th value and the next value and dividing the total by 2. ...
Section 2-6
... be within s 2n 2 1 of the mean. A statistics teacher reports that the test scores in her class of 17 students had a mean of 75.0 and a standard deviation of 5.0. Kelly, the class’s self-proclaimed best student, claims that she received a grade of 97. Could Kelly be telling the truth? 41. Why Divide ...
... be within s 2n 2 1 of the mean. A statistics teacher reports that the test scores in her class of 17 students had a mean of 75.0 and a standard deviation of 5.0. Kelly, the class’s self-proclaimed best student, claims that she received a grade of 97. Could Kelly be telling the truth? 41. Why Divide ...
Measurement of social capital in the UK
... This framework is based on earlier work carried out in the UK and international studies. Our aim has been to produce a standardised set of questions that can be used in national and local studies to describe the patterns of social capital within the UK, and to help inform the development of national ...
... This framework is based on earlier work carried out in the UK and international studies. Our aim has been to produce a standardised set of questions that can be used in national and local studies to describe the patterns of social capital within the UK, and to help inform the development of national ...
IOSR Journal of Business and Management (IOSR-JBM)
... think, holds for democratic (American, British , European, Canadian, Australian and New Zealand) countries, which are at least non-dictatorship, with capitalist or semi-capitalist economic systems; and „ with varying degrees and to a more limited extent also for certain capitalist or semi-capitalist ...
... think, holds for democratic (American, British , European, Canadian, Australian and New Zealand) countries, which are at least non-dictatorship, with capitalist or semi-capitalist economic systems; and „ with varying degrees and to a more limited extent also for certain capitalist or semi-capitalist ...
3.3 Measures of Variation
... If one population or sample has a higher coefficient of variation than the other, then we can conclude that the sample or population has more variation. Example: The customer service department of a phone company is experimenting with two different systems. On Monday they try the first system which ...
... If one population or sample has a higher coefficient of variation than the other, then we can conclude that the sample or population has more variation. Example: The customer service department of a phone company is experimenting with two different systems. On Monday they try the first system which ...
The Standard Deviation
... Imagine that we model each of the N measurements in our data set as being what happens when we add tiny random errors from fairly large number of sources to the measured quantity’s “true value” (whatever that might be). This “random error” measurement model is only a model of the measurement process ...
... Imagine that we model each of the N measurements in our data set as being what happens when we add tiny random errors from fairly large number of sources to the measured quantity’s “true value” (whatever that might be). This “random error” measurement model is only a model of the measurement process ...
Outlier Identification
... An approximate two-sided P-Value is obtained by computing the probability of exceeding |T| based on Student’s t-distribution with n - 2 degrees of freedom and multiplying the result by 2n. A small P-value leads to the conclusion that the most extreme point is indeed an outlier. For small samples, on ...
... An approximate two-sided P-Value is obtained by computing the probability of exceeding |T| based on Student’s t-distribution with n - 2 degrees of freedom and multiplying the result by 2n. A small P-value leads to the conclusion that the most extreme point is indeed an outlier. For small samples, on ...
13.2 Measures of Central Tendency
... mode are easily identified when the “leaves” are ranked (in numerical order) on their “stems.” ...
... mode are easily identified when the “leaves” are ranked (in numerical order) on their “stems.” ...
World Values Survey
The World Values Survey (WVS) is a global research project that explores people’s values and beliefs, how they change over time and what social and political impact they have. It is carried out by a worldwide network of social scientists who, since 1981, have conducted representative national surveys in almost 100 countries.The WVS measures, monitors and analyzes: support for democracy, tolerance of foreigners and ethnic minorities, support for gender equality, the role of religion and changing levels of religiosity, the impact of globalization, attitudes toward the environment, work, family, politics, national identity, culture, diversity, insecurity, and subjective well-being.The findings are valuable for policy makers seeking to build civil society and democratic institutions in developing countries. The work is also frequently used by governments around the world, scholars, students, journalists and international organizations and institutions such as the World Bank and the United Nations (UNDP and UN-Habitat). Data from the World Values Survey have for example been used to better understand the motivations behind events such as the Arab Spring, the 2005 French civil unrest, the Rwandan genocide in 1994 and the Yugoslav wars and political upheaval in the 1990s.Romano Prodi, former Prime Minister of Italy and the tenth President of European Commission said about the WVS work: “The growing globalization of the world makes it increasingly important to understand [...] diversity. People with varying beliefs and values can live together and work together productively, but for this to happen it is crucial to understand and appreciate their distinctive worldviews”.