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An article in The Engineer ("Redesign for Suspect Wiring." June 1990) reported the results of an investigation into wiring errors on commercial transport aircraft that may produce faulty information to the flight crew. Such a wiring error may have been responsible for the crash of a British Midland Airways aircraft in January 1989 by causing the pilot to shut down the wrong engine. Of 1600 randomly selected aircraft, sixteen were found to have wiring errors that could display incorrect information to the flight crew. (a) Find a 90% confidence interval on the proportion of aircraft that have successful wirings. Blank 1

An article in The Engineer ("Redesign for Suspect Wiring." June 1990) reported the results of an investigation into wiring errors on commercial transport aircraft that may produce faulty information to the flight crew. Such a wiring error may have been responsible for the crash of a British Midland Airways aircraft in January 1989 by causing the pilot to shut down the wrong engine. Of 1600 randomly selected aircraft, sixteen were found to have wiring errors that could display incorrect information to the flight crew. (a) Find a 90% confidence interval on the proportion of aircraft that have successful wirings. Blank 1

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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pls answer blank 1-4 for a rate thumbs up ty (DONT ROUND OFF PLEASE, put all decimal places)

Question 5 An article in The Engineer ("Redesign for Suspect Wiring." June 1990) reported the results of an investigation into wiring errors on commercial transport aircraft that may produce faulty information to the flight crew. Such a wiring error may have been responsible for the crash of a British Midland Airways aircraft in January 1989 by causing the pilot to shut down the wrong engine. Of 1600 randomly selected aircraft, sixteen were found to have wiring errors that could display incorrect information to the flight crew. (a) Find a 90% confidence interval on the proportion of aircraft that have successful wirings. Blank 1 <p < Blank 2 (b) Suppose we use the information in this example to provide a preliminary estimate of p. How large a sample would be required to produce an estimate of p that we are 95% confident differs from the true mean wiring errors by at most 0.008? Blank 3 aircrafts (C) Suppose we did not have a preliminary estimate of p. How large a sample would be required if we wanted to be at least 90% confident that the sample proportion differs from the true proportion of successfully wired aircrafts by at most 0.008 regardless of the true value of p? Blank 4 aircrafts Blank 1 Add your answer Blank 2 Add your answer Blank 3 Add your answer Blank 4 Add your answer
Transcribed Image Text:Question 5 An article in The Engineer ("Redesign for Suspect Wiring." June 1990) reported the results of an investigation into wiring errors on commercial transport aircraft that may produce faulty information to the flight crew. Such a wiring error may have been responsible for the crash of a British Midland Airways aircraft in January 1989 by causing the pilot to shut down the wrong engine. Of 1600 randomly selected aircraft, sixteen were found to have wiring errors that could display incorrect information to the flight crew. (a) Find a 90% confidence interval on the proportion of aircraft that have successful wirings. Blank 1 <p < Blank 2 (b) Suppose we use the information in this example to provide a preliminary estimate of p. How large a sample would be required to produce an estimate of p that we are 95% confident differs from the true mean wiring errors by at most 0.008? Blank 3 aircrafts (C) Suppose we did not have a preliminary estimate of p. How large a sample would be required if we wanted to be at least 90% confident that the sample proportion differs from the true proportion of successfully wired aircrafts by at most 0.008 regardless of the true value of p? Blank 4 aircrafts Blank 1 Add your answer Blank 2 Add your answer Blank 3 Add your answer Blank 4 Add your answer
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