#1

There is convincing evidence the population median number of characters in Ham email is not the same as the population median number of characters in Spam email (two-sample t-test on log transformed data, p-value < 0.0001).

It is estimated that the median number of characters in Ham email is 4.87 times the median number of characters in Spam email.

With 95% confidence the population median of the number of characters in Ham email is between 3.10 and 7.66 times larger than the population median of the number of characters in Spam email.