A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing and the new procedure so as to determine if the new process results in an improvement. If 75 of 1500 items from the existing procedure were found to be defective and 80 of 2000 items from the new procedure were found to be defective,
A certain change in a process for manufacture of component parts is being considered. Samples are taken using both the existing and the new procedure so as to determine if the new process results in an improvement. If 75 of 1500 items from the existing procedure were found to be defective and 80 of 2000 items from the new procedure were found to be defective,
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Find a 90% confidence interval for the true difference in the fraction of defectives between the
existing and the new process.
![A certain change in a process for manufacture of component parts is being considered. Samples
are taken using both the existing and the new procedure so as to determine if the new process
results in an improvement. If 75 of 1500 items from the existing procedure were found to be
defective and 80 of 2000 items from the new procedure were found to be defective,](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa0855559-e62b-4213-b580-f3cda88013e7%2F6c6d40f9-a906-46c5-9473-af7a2d122351%2Freojsyv_processed.png&w=3840&q=75)
Transcribed Image Text:A certain change in a process for manufacture of component parts is being considered. Samples
are taken using both the existing and the new procedure so as to determine if the new process
results in an improvement. If 75 of 1500 items from the existing procedure were found to be
defective and 80 of 2000 items from the new procedure were found to be defective,
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