It is important for airlines to follow the published scheduled departure times of flights. Suppose that one airline that recently sampled the records of 246 flights originating in Orlando found that 10 flights were delayed for severe weather, 4 flights were delayed for maintenance concerns, and all the other flights were on time.a. Estimate the percentage of on-time departures using a 98% confidence level.b. Estimate the percentage of flights delayed for severe weather using a 98% confidence level.
It is important for airlines to follow the published scheduled departure times of flights. Suppose that one airline that recently sampled the records of 246 flights originating in Orlando found that 10 flights were delayed for severe weather, 4 flights were delayed for maintenance concerns, and all the other flights were on time.a. Estimate the percentage of on-time departures using a 98% confidence level.b. Estimate the percentage of flights delayed for severe weather using a 98% confidence level.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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It is important for airlines to follow the published scheduled departure times of flights. Suppose that one airline that recently sampled the records of 246 flights originating in Orlando found that 10 flights were delayed for severe weather, 4 flights were delayed for maintenance concerns, and all the other flights were on time.
a. Estimate the percentage of on-time departures using a 98% confidence level.
b. Estimate the percentage of flights delayed for severe weather using a 98% confidence level.
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