What is the value for the calculated F (interaction) ? Choose the best answer

University Alpha

Mechanics         80  67 70 48 88 30 67 66 55 47 36 78

Metallurgy          87 77 76 80 67 78 33 56 75 66 57 44

Maths               33 56 68 78 43 89 92 56 78 57 90 54

University Beta

Mechanics       80    77 70 88 88 70 88 77 87 90 90 78

Metallurgy       47    85 87 80 80 88 95 80 75 90 93 84

Maths               47    84 35 79 78 38 54 78 43 90 67 45