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Boeing 727 pilot collected 61 noise observations using handheld sound meter. Low sound levels are under 88 decibles, medium 88-91 decibels, high 92 or more, Three flight phases at a=.05, is cockpit noise independent of flight phase                           &nb sp;                                                             Noise Level               Climb    Cruise     Descent    Total
Low                     6          2     6         14 Medium             18          3     8           29     
High  ;                   1          3     14           18

Submitted: 237 days and 8 hours ago.
Category: Math
Value: $9
Status: CLOSED

Accepted Answer

File: sk1llz.doc

Sincerely,
Sk1llz

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Expert: Sk1llz
Pos. Feedback: 100.0 %
Accepts: 
Answered: 3/30/2009

Mastermind

Mathematics, Statistics and Physics

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