A normal probability plot may be used to assess the assumption of normality for a particular set of data values.

Question

Quizplus · Accepted Answer

A normal probability plot, also known as a normal Q-Q plot, is a graphical tool that can be used to assess normality. It plots the observed data against the expected data for a normal distribution. If the data points roughly fall on a straight line, this suggests that the data are approximately normally distributed. If there are obvious deviations from this linearity, this suggests that the data may not be normally distributed. Therefore, a normal probability plot can be used to assess the assumption of normality for a particular set of data values.

A Normal Probability Plot May Be Used to Assess the Assumption