times and her results had a standard deviation of 1 33 The same sample was analyzed five times by Student B and his results had a standard deviation of 3 42 To determine if their standard deviations are similar they perform an F The calculated F value is and the table value of Fis Refer to Table for critical values of F Degrees of freedom for 2 2 AWN 3 4 5678 c 10 2 3 39 00 39 17 16 04 15 44 15 10 10 65 9 98 9 60 8 43 7 76 7 39 7 26 6 60 6 54 5 89 6 06 5 42 5 71 5 08 5 46 4 5 39 25 39 30 39 33 14 88 14 73 9 36 9 20 Fcalculated 6 61 Ftable 9 36 Fcalculated 6 61 Ftable 5 19 Fcalculated 2 57 Ftable 7 39 6 23 5 52 5 05 4 72 4 83 4 47 6 7 39 36 14 62 9 07 7 15 6 98 6 85 5 99 5 82 5 70 5 29 5 12 4 99 4 82 4 65 4 53 4 32 Degrees of freedom for s 8 9 39 37 39 39 14 54 14 47 8 98 8 90 6 76 6 68 5 60 5 52 4 90 4 82 4 43 4 36 4 10 4 03 4 48 4 20 4 24 4 07 3 95 3 85 3 78 10 39 40 14 42 8 84 6 62 5 46 4 76 4 30 3 96 3 72