The following dataset is the sulphur dioxide (SO 2 ) content of air (in XXXXXXXXXXg/m 3 ) in 41 US cities averaged over 3 years: Use the Box–Cox transformation family to find which transform would be...

The following dataset is the sulphur dioxide (SO 2 ) content of air (in 10 - 6 g/m 3 ) in 41 US cities averaged over 3 years: Use the Box–Cox transformation family to find which transform would be sensible to analyse the data. Plot the profile likelihood of the mean SO 2 content. Check the normal plot of the data before and after the transformation.