10.26 Female and male monthly smokers Refer to the previous exercise. A subject was called a monthly smoker if he or she had smoked cigarettes over an extended period of time.

The 74 female monthly smokers had a mean HONC score of 5.4 1s = 3.52, and the 71 male monthly smokers had a mean HONC score of 3.9 1s = 3.62. Using software (such as the Comparing Means web app or MINITAB) that can conduct analyses using summary statistics, repeat parts b and c of the previous exercise.