Within the past month, an MPH student has collccted data on birth weight $($grams$)$ from

a random sample of $80$ deliveries at Aboko clinic which is a lowincome population

clinic and $100$ deliverics at Trassaco clinic which is a high$-$income clinic. The relevant

information is summarizcd in the table below. Let a $=0\mathrm{.}05$ and further assume that the

population variances arc unknown but assume to be cqual. Can we conclude that infants

born at a low$-$income area clinic, on average, tend to be lighter than those born at clinic

serving high income population?

Name of clinic n x s

Abokobi clinic $802800100$

Trassaco clinic $1002650.82$