Two different types of injection-molding machines are used to form plastic parts. A part is considered defective if has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected, and 15 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Construct a 95% confidence interval on the difference in the two fractions defective O a. Cl on the difference: -0.0094 <= p1 - p2 <= 0.074 O b. Cl on the difference: -0.0054<=p1 - p2 <= 0.034 O c. Cl on the difference: -0.0074 <=p1 - p2 <= 0.054 O d. None among the choice
Two different types of injection-molding machines are used to form plastic parts. A part is considered defective if has excessive shrinkage or is discolored. Two random samples, each of size 300, are selected, and 15 defective parts are found in the sample from machine 1, and 8 defective parts are found in the sample from machine 2. Construct a 95% confidence interval on the difference in the two fractions defective O a. Cl on the difference: -0.0094 <= p1 - p2 <= 0.074 O b. Cl on the difference: -0.0054<=p1 - p2 <= 0.034 O c. Cl on the difference: -0.0074 <=p1 - p2 <= 0.054 O d. None among the choice
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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Transcribed Image Text:Two different types of injection-molding machines are used to form plastic parts. A part is
considered defective if has excessive shrinkage or is discolored. Two random samples, each of
size 300, are selected, and 15 defective parts are found in the sample from machine 1, and 8
defective parts are found in the sample from machine 2.
Construct a 95% confidence interval on the difference in the two fractions defective
a.
Cl on the difference: -0.0094 <=p1 - p2 <= 0.074
O b. Cl on the difference: -0.0054 <= p1 - p2 <= 0.034
O c. Cl on the difference: -0.0074 <=p1 - p2 <= 0.054
O d. None among the choice
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