# Goodness of fit tests

1. Jul 2, 2012

### Mark J.

Hi.
For testing exponential distribution we can use several goodness of fit tests like Shapiro-Wilk etc.Can we use this tests for poisson distribution as well or for poisson discrete distribution different tests are generally used?
Can you mention some of them pls?
Regards

2. Jul 2, 2012

### viraltux

Hi Mark,

Shapiro-Wilk tests normality, so you can't use it either for Poisson or Exponential distributions. A general and simple method is the Pearson's Chi-Square goodness of fit test.

Last edited: Jul 2, 2012
3. Oct 18, 2012

### ashimgiyanani

Think u can still measure Weibull, exponential, lognormal with S_W test. In Minitab they use chi-square as well.