What exactly is an Anderson-Darling test? Testing for normality is often the first step in analyzing your data. Many statistical tools you might use have normality as an underlying assumption. If you ...

The diameters of 50 steel rods are measured and saved as values of the variable DISTANCE in the following data set: * data measures; input diameter @@; label diameter='Diameter in mm'; datalines; ...

Statisticians frequently assume that data follow a normal distribution when developing statistical methods and performing practical data analysis. In most introductory statistics textbooks, the ...

In this article we review two historical approximations to the Poisson and binomial cumulative distribution functions (CDFs); that is, the Wilson—Hilferty and Camp—Paulson approximations. Both of ...

The primary goal of managerial accounting is to supply internal decision-makers with the information necessary to make good planning and cost-control decisions. While data, research studies and ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Chip Stapleton is a Series 7 and Series 66 license holder, CFA Level ...

This course is compulsory on the BSc in Actuarial Science and BSc in Financial Mathematics and Statistics. This course is available on the BSc in Data Science, BSc in Econometrics and Mathematical ...

The use of the correlation coefficient is suggested as a technique for summarizing and objectively evaluating the information contained in probability plots. Goodness-of-fit tests are constructed ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...