One of the following statements is correct. Which one?

Select one:

a.

The 2 approximation is not very accurate for the deviance; it is a much better approximation for the difference in deviances.

b.

By Wilks theorem, for large n, if the model is a good fit, then the deviance is distributed according to 2 np, where n is the number of parameters and p is the number of observations.

c.

For large n, if the model is a good fit, the Pearsons goodness of fit test is distributed according to 2 np, where n is the number of parameters and p is the number of observations.

One of the following statements is correct. Which one? Select one: a. The 2 approximation is not very accurate for the deviance; it is a much better approximation for the difference in deviances. b. By Wilks' theorem, for large n, if the model is a good fit, then the deviance is distributed according to np2, where n is the number of parameters and p is the number of observations. c. For large n, if the model is a good fit, the Pearson's goodness of fit test is distributed according to np2, where n is the number of parameters and p is the number of observations