Statistics - Fiction/Non-fiction books

Could someone please help me with the following question:

Would you expect word-length in general to differ in fiction and non-fiction books?

Take two books, of different authors, one fiction, one non-fiction. Choose a reasonable sample size of words from each, and find the mean, median, modal word-length in each and standard deviation. Make it clear how you have done the various calculations without presenting detailed arithmetic.

In the light of the figures found, comment on the initial question (no formal inferential work needed) just an informed view from the figures found.