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)99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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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)99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.
A
sample
of
200
bolts
from One machine showed that 15
were defective
of
12 were
100_bolts from another machine showed that
ca) 95%
while a
sample
defective. Find
the
(b) 99.73 % confidence limits
for the
differen ce in proportions
of defective bolts from the two
machines · Discuss the results
obtained.
CS Scanned with CamScanner
Transcribed Image Text:A sample of 200 bolts from One machine showed that 15 were defective of 12 were 100_bolts from another machine showed that ca) 95% while a sample defective. Find the (b) 99.73 % confidence limits for the differen ce in proportions of defective bolts from the two machines · Discuss the results obtained. CS Scanned with CamScanner
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