Their pricing approaches, while in the boundaries of solid statistical analysis, are somewhat opportunistic. For Zillow to be more accurate, the use of a range of valuations for each property could be included. This would be more realistic to the true conditions of the market. Finally, the methodology used for this analysis is based on the latest 30 home sales; therefore the data itself and analysis are much timelier

A more robust method is to conduct a factor analysis before running the regression analysis, and then to rotate the factors to insure that the factors are independent in the factor analysis ("Statistics Solutions, 2012"). 9. Discuss autocorrelation (serial correlation) assumption & implication to student work Autocorrelation (lagged correlation or serial correlation) occurs when the correlation between values in a random process at different times that is a function of the

Correlation & Regression A fifth grade science teacher wants to know if there is a relationship between final exam scores and overall coursepoints after adjusting for a quiz score. In order to determine whether there was a significant relationship between overall coursepoints and final exam scores, after controlling for quiz scores, a hierarchical regression was run. All assumptions were assessed using SPSS. There was independences of residuals, as assessed by a Durbin-Watson

Many patrons tip based on how quickly their food is delivered, and if it is hot or not, how it tastes, did it meet the patrons' expectations or not for this specific type of food, what is the frequency of the patrons' dining on this specific type of food. There are also an entire series of attitudinal questions regarding why this specific restaurant was chosen, and these could range from

Statistical education trains students in the science of collecting, displaying, analyzing and interpreting numerical data. It is often referred to as "the science of doing science." Students come across statistical ideas in their daily lives. For example, a student may see statistics used in political polls, music charts and unemployment rates. Basic statistical education is important in helping students to make sense of the abundance of numerical information that is presented

Statistical Analysis Reported in Two Journal Articles Research endeavors, albeit it clinical, empirical, descriptive, historical, or case study oriented, must at all times adhere to the rigors of effective or best-fit research practice. Without stringent controls placed on the area of investigation no research endeavor will advance any body of knowledge. To this end all research must be finely tuned and described as to intent or purpose, phenomenon to be