Who would restauranteurs trust with the manager code or swipe card when they are away? Making such decision seems natural for many businessmen and women. However, the restaurant industry possesses a singular […]
The US Holiday Season started with high anxiety for the Retail Industry as online retailers registered high volume of sales on Black Friday 2017. Pre-holiday season reports signaled not much change in […]
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One of the most recurrent questions in quantitative research refers to on how to assess and rank the relevance of variables included in multiple regression models. This type of uncertainty arises most […]
In a previous post, I covered how heteroscedasticity “happened” to me. The anecdote I mentioned mostly pertains to time series data. Given the purpose of the research that I was developing back […]
Sometimes it is good to learn about issues such as heteroscedasticity by empirically identifying them. Here is how I detected heteroscedasticity was present in time series analysis. I started working on a […]
Economists and policy analysts continue to wonder what is going on in the U.S. economy currently. Most of the uncertainty stems from both the anemic pace of economic growth as well as […]
Multicollinearity is a common pitfall in the practice of multiple regression analysis. Whenever analysts conduct quantitative research, they must be aware of at least the seven core assumptions of linear regression. In […]
The American Statistical Association made it easier for researchers to use p-values. By laying down few simple principles, ASA aims at improving the understanding of a commonly misused statistic. Most importantly, ASA […]
The currency seems to have a negative effect… There are two sides to every story, even for US-China foreign trade. Ever since China emerged to the world economy as a major manufacturing […]
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