Often the questions we ask require us to make accurate predictions on how one factor affects an outcome. If a teacher is asked to work out how time spent writing an essay affects essay grades, it’s ...

Box and Wetz [1] and more recently Suich and Derringer [4] have presented a procedure for determining the adequacy of the regression model. This procedure is extended to allow the experimenter to ...

This online data science course will explore concepts in statistical modeling, such as when to use certain models, how to tune those models, and determining whether other options will provide certain ...

Whether the salary differential between junior and senior faculty is overly small or is falling ("salary compression") is currently a popular topic in higher education. However, simple comparisons of ...

Our teacher already knows there is a positive relationship between how much time was spent on an essay and the grade the essay gets, but we’re going to need some data to demonstrate this properly.