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9.34 A sample of 200 bolts from one machine showed that 15 were defective, while a sample of 100 bolts from another machine showed that 12 were defective. Find the (a) 95%, (b) 99%, and (c) 99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.

9.34 A sample of 200 bolts from one machine showed that 15 were defective, while a sample of 100 bolts from another machine showed that 12 were defective. Find the (a) 95%, (b) 99%, and (c) 99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.

MATLAB: An Introduction with Applications
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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9.34 A sample of 200 bolts from one machine showed that 15 were defective, while a sample of 100 bolts from another machine showed that 12 were defective. Find the (a) 95%, (b) 99%, and (c) 99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.
Transcribed Image Text:9.34 A sample of 200 bolts from one machine showed that 15 were defective, while a sample of 100 bolts from another machine showed that 12 were defective. Find the (a) 95%, (b) 99%, and (c) 99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.
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