Compact florescent light bulbs save energy when compared to traditional incandescent bulbs. Our green energy campaign includes efforts to get local residents to change their incandescent bulbs to florescent bulbs. Initially 208 households make the change. Market studies suggest that, in the absence of limiting factors, we could increase that number by 22% each month. In our target area, there are 278,928 households, which we take as the limiting value. Make a logistic model that gives the number of households converting to florescent bulbs after t months. (Use t as your variable. Round r to three decimal places.) N(t) = .