To determine if Morgan's hens produce enough eggs to sell to the four families, we need to know:
1. The number of eggs Morgan collects per week.
2. The number of eggs needed per week by the four families.
Therefore, the two statements that are not needed to determine if Morgan's hens produce enough eggs to sell to the four families are:
1. Morgan has 13 hens.
2. Each family will pay $3.50 per dozen eggs.