Question: Suppose that 2 of 4000 men and 3 of 3500 women (all ages 40-44) develop lung cancer over the next year. All these people have smoked 1 pack of cigarettes per day from age 18 to their current age. Perform a significance test to compare the incidence of lung cancer between 40- to 44-year-old men and women. Report a two-tailed p-value.