Defining Non-normal Data. Normally distributed data is needed to use several statistical tools, such as individual control charts, Cp/Cpk analysis, t-tests, and the analysis of variance ().If a ...

The lognormal distribution differs from the normal distribution in several ways. A major difference is in its shape: the normal distribution is symmetrical , whereas the lognormal distribution is not.

This distribution of data points is called the normal or bell curve distribution. For example, in a group of 100 individuals, 10 may be below 5 feet tall, 65 may stand between 5 and 5.5 feet and ...

However, if we were concerned that the data did not originate from a Normally distributed population, then there are tests available which do not make use of this assumption. Because the data are no ...

Course TopicsIn many applications, the response variable is not Normally distributed. GLM can be used to analyze data from various non-Normal distributions. In this short course, we will introduce two ...