1. To conduct a hypothesis test to evaluate whether there is evidence that the mean weight of newborns from mothers who smoke isless thanthe mean weight of newborns from mothers who do not smoke, which one of the following set of hypotheses is appropriate?
2. (Assume₁represents the mean weight of newborns from mothers who smoke and₂represents the mean weight of newborns from mothers who do not smoke)
3. Ho:₁= ₂
4. Ha:₁< ₂
5. Ho:₁=₂
6. Ha:₁<₂
7. Ho:₁= ₂
8. Ha:₁> ₂
9. Ho:₁= ₂
10. Ha:_{1 2}