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

branch1 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.

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