An electronics store has 4 branches in a large city. They are curious if sales in any particular department are different depending on location. They take a random sample of 4 purchases throughout the 4 branches - the results are recorded below. Run an independence test for the data below at the 0.05 level of significance.

	Appliances	TV	Computers	Cell Phones
Branch 1	56	28	63	24
Branch 2	44	22	55	27
Branch 3	53	17	49	33
Branch 4	51	31	66	29

Enter the test statistic - round to 4 decimal places.