The test statistic **χ ^{2}** is calculated as below:

**n** is the the number of observed and estimated values

**O _{i}** is the i

^{th}observed value

**E _{i}** is the i

^{th}estimated value

The test statistic **χ ^{2}** is calculated as below:

**n** is the the number of observed and estimated values

**O _{i}** is the i

**E _{i}** is the i