Answer all questions with explanation

Consider 3 national football teams (A, B, C), and a local football team (D) sold merchandise in different stores. Past records show national teams A and C were equally preferred, 30% preferred national team B, and 24% preferred the local team, D. The retail stores believes that there has been a change in customer preferences and that the preference for local football team has increased and perhaps will positively contribute to increased profits. Find the value of the appropriate test statistic for testing the change in customer preferences from the past years.

Football team	A	B	C	D
Number	62	70	26	120