=+12.14 ● It is hypothesized that when homing pigeons are disoriented in a certain manner, they will exhibit no preference for any direction of flight after takeoff. To test this, 120 pigeons are disoriented and released, and the direction of flight of each is recorded. The resulting data are given in the accompanying table.

Direction Frequency 08 to , 458 12 458 to , 908 16 908 to , 1358 17 1358 to , 1808 15 1808 to , 2258 13 2258 to , 2708 20 2708 to , 3158 17 3158 to , 3608 10