3. A survey of the morning beverage market shows that the primary breakfast beverage for 83% Americans is coffee. A coffee producer in Seattle, where coffee is plentiful, believes the figure is higher for Seattle. To test this idea, she contacts a random sample of 550 Seattle residents and asks which primary beverage they consumed for breakfast that day. Suppose 115 replied that coffee was the primary morning beverage. Using a level of significance of 0.05, test the idea that the coffee figure is higher for Seattle. Also determine the 95% condence interval ofthe population proportion