Soft Drink Drinkers Simulation (1-prop z)
A certain soft drink bottler claims that less than 20% of its customers drink another brand of soft drink on a regular basis. A random sample of 100 customers yielded 18 who did in fact drink another brand of soft drink on a regular basis. Do these sample results support the bottler’s claim?
Each dot in the dot plot represents the number of customers out of a random sample of 100 who say they drink another brand of soft drink on a regular basis, under the assumption that less than 20% do.