Qualitative research is an approach to scientific research that involves using observation to gather and analyze non-numerical, in-depth, and well-contextualized datasets.It serves as an integral part of academic, professional, and even daily decision-making processes (Baxter & Jack, 2008)....
A new stockbroker (XYZ) claims that their brokerage fees are lower than that of your current stock broker's (ABC). Data available from an independent research firm indicates that the mean and std-dev of all ABC broker clients are $18 and $6, respectively. A sample of 100 clients of ABC...
In statistical research, a variable is defined as an attribute of an object of study. Choosing which variables to measure is central to good experimental design. Example If you want to test whether some plant species are more salt-tolerant than others, some key variables you might measure ...
Publications of the American Statistical AssociationHuet, S., A. Bouvier, M-A. Poursat, and E. Jolivet. 2004 . Statistical tools for nonlinear regression: a practical guide with S-Plus . New York : Springer-Verlag . 246 p.Huet, S., Bouvier, A., Gruet, M.-A. & Jolivet, E. (...
The simple random sampling process entails six steps, each performed in sequential order. Step 1: Define the Population The starting point of statistical analysis is to determine the population base. This is the group about which you wish to learn more, confirm ahypothesis, or determine a statis...
Research methods for analyzing data Research methodQualitative or quantitative?When to use Statistical analysis Quantitative To analyze data collected in a statistically valid manner (e.g. from experiments, surveys, and observations). Meta-analysis Quantitative To statistically analyze the results of a ...
Examples of anomaly detection systems A go-to example of anomaly detection is a credit card fraud detection system. This uses algorithms to identify unusual spending patterns in real-time: large purchases in a new location, for example, This alert for potentially fraudulent activity is then reviewe...
There are many healthcare fields where predictive analytics can be applied. Below are a few examples of predictive analytics use cases in healthcare: Clinical research:Testing antibiotics and developing rapid vaccines for COVID-19 and seasonal flu; studying connections between diet, heart disease, an...
Statistics has the power of summarizing large data sets. Some statistical tools provide a researcher with the ability of describing a whole data set by using one single value. The mean is a good example of such tools. However, as good as these features can be, there is an anomaly in stat...
Research methodologies can roughly be categorized into three group: quantitative, qualitative, and mixed-methods. Qualitative Research: This methodology is based on obtaining deep, contextualized, non-numerical data. It can occur, for example, through open-ended questioning of research particiapnts in ...