Hearing levels or cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Noise level is described as Low=under 88 decibels, Medium=88-91 decibels, High=92^decibels. At a = .05, is the cockpit noise level independent of flight phase? NOISE

Question

Hearing levels or cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Noise level is described as Low=under 88 decibels, Medium=88-91 decibels, High=92^decibels. At a = .05, is the cockpit noise level independent of flight phase?   NOISE

Noise  Climb Cruise Descent Row Total
Level
Low       6    2       6       14
Medium    18   3       8       29
High      1    3       14      18
Col total 25   8       28      61