The following data resulted from an experiment to compare three burners B1, B2 and B3. A Latin square design was used as the tests were made on 3 engines and were spread over 3 days. Engine 1 Engine 2 Engine 3 Day 1 B- 16 B - 17 B3 - 20 Day 2 B2 - 16 B3 - 21 B, -15 Day 3 B3 - 15 B-12 B2 - 13 Test the hypothesis that there is no difference between the burners. (16)