A survey was conducted to evaluate the effectiveness of a new flu vaccine, administered in a small community. Some persons appeared only for one shot. The following data were observed: (a) Evaluate...

A survey was conducted to evaluate the effectiveness of a new

flu vaccine, administered in a small community. Some persons

appeared only for one shot. The following data were observed:

(a) Evaluate the effectiveness of the vaccine.

(b) Combine the last two column classifications so that these

classifications become "no vaccine" and "some vaccine."

Do the data support your conclusion in part (a)?