statistics A marketing manager for a fast-food restaurant wants to know which of 3 possible promotions will generate the most positive attention for the restaurant. A random sample of 100 customers of this restaurant was surveyed to determine which promotion they are most interested in. The results are: Promotion Frequency Free chocolate shake with any purchase 30 Holiday Kids Activity 25 $5 gift cards to every 5th drive through customer 35 Do these data indicate a preference for one promotion over the others, or does it seem that all promotions may be equally preferred in the population of all customers of this restaurant