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An electronics store has 4 branches in a large city. They are curious if sales in...

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Basic Math

An electronics store has 4 branches in a large city. They arecurious if sales in any particular department are differentdepending on location. They take a random sample of purchasesthroughout the 4 branches – the results are recorded below. Run anindependence test for the data below at the 0.05 level ofsignificance.

Appliances

TV

Computers

Cameras

Cell Phones

Branch 1

54

28

61

24

81

Branch 2

44

21

55

23

92

Branch 3

49

18

49

30

72

Branch 4

51

29

65

29

102

What is the Test statistic (?2) and how is it done in excel?

Answer & Explanation Solved by verified expert
3.8 Ratings (648 Votes)
The hypothesis being tested is H0 Sales and location are independent Ha Sales and location are not independent The output is Col 1 Col 2 Col 3 Col 4 Col 5 Total Row 1 Observed 54 28 61 24 81 248 Expected 5026 2437 5838 2691 8808 24800 O E 374 363 262 291 708 000 O E E 028 054    See Answer
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