An analyst at a local bank wonders if the age distribution of customers coming for service at his branch in town is the same as at a branch located near the mall. He selects 100 transactions at random from each branch and researches the age information for the associated customer. These are the data :

			Age
		less than 30	30-55	56 or older	Total
	In town	25	37	38	100
	mall	30	48	22	100
	Total	55	85	60	200
1	What is the null hypothesis if you want to check if the age patterns of customers are independent of bank location?