High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Cockpit noise in a jet aircraft is mostly due to airflow at hundreds of miles per hour. This 3 x 3 contingency table shows 61 observations of data collected by an airline pilot using a handheld sound meter in a certain aircraft cockpit. Noise level is defined as "low" (under 88 decibels), "medium" (88 to 91 decibels), or "high" (92 decibels or more). There are three flight phases (climb, cruise, descent). Noise Level Low (L) Medium (M) High (H) Column Total i P(B) ii P(L) iP(HIC) Cockpit Noise iv P(HID) V P(L and B) vi P(L and C) Flight Phase Climb Cruise (B) (C) 7 17 6 30 6 3 2 11 Click here for the Excel Data File (a) Calculate the following probabilities: (Round your answers to 4 decimal places.) Descent (D) 7 3 10 20 0.4918 Row Total 20 23 18 61
High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Cockpit noise in a jet aircraft is mostly due to airflow at hundreds of miles per hour. This 3 x 3 contingency table shows 61 observations of data collected by an airline pilot using a handheld sound meter in a certain aircraft cockpit. Noise level is defined as "low" (under 88 decibels), "medium" (88 to 91 decibels), or "high" (92 decibels or more). There are three flight phases (climb, cruise, descent). Noise Level Low (L) Medium (M) High (H) Column Total i P(B) ii P(L) iP(HIC) Cockpit Noise iv P(HID) V P(L and B) vi P(L and C) Flight Phase Climb Cruise (B) (C) 7 17 6 30 6 3 2 11 Click here for the Excel Data File (a) Calculate the following probabilities: (Round your answers to 4 decimal places.) Descent (D) 7 3 10 20 0.4918 Row Total 20 23 18 61
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 42PFA
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