Values For Kurtosis. Hair et al 2017 p. Normal distribution kurtosis 3.
The degree of decay as we move away from the center also depends on the value of the shape parameter. Excess Kurtosis for Normal Distribution 33 0. As a result people usually use the excess kurtosis which is the k u r t o s i s 3.
There are two different common definitions for kurtosis.
These extremely high values can be explained by the heavy tails. Whereas skewness measures symmetry in a distribution kurtosis measures the heaviness of the tails or the peakedness. There are two different common definitions for kurtosis. Leptokurtic distributions have positive kurtosis values.
