Over a long period of time at a suburban restaurant, in addition to the glass of water that all customers get, 60% of the customers ordered coffee, 20% ordered tea, 15% ordered soda, and 5% ordered milk. The owners opened a new restaurant in the business section of town, where they think that the drinking preferences of the customers may be different. In a random sample of 300 customers, 150 ordered coffee, 78 ordered tea, 51 ordered soda, and 21 ordered milk. Required:
Determine at a 1% level of significance whether drinking patterns are different in town than at the suburban restaurant.