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The owner of a computer company claims that the proportion of defective computer chips produced at plant A is higher than the proportion of defective chips produced by plant B. A quality control specialist takes a random sample of 80 chips from production at plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pB = the true proportion of defective chips from plant B. Which of the following is the correct standardized test statistic for the hypotheses, ?

The owner of a computer company claims that the proportion of defective computer chips produced at plant A is higher than the proportion of defective chips produced by plant B. A quality control specialist takes a random sample of 80 chips from production at plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pB = the true proportion of defective chips from plant B. Which of the following is the correct standardized test statistic for the hypotheses, ?

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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The owner of a computer company claims that the proportion of defective computer chips produced at plant A is higher than the proportion of defective chips produced by plant B. A quality control specialist takes a random sample of 80 chips from production at plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pB = the true proportion of defective chips from plant B. Which of the following is the correct standardized test statistic for the hypotheses, ?

 
 
 
 
Sampie cmps fro םשיסוטישיושה prant Ctemine uciccive cips. The Specians then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pg = the true proportion of defective chips from plant B. Which of the following is the correct standardized test statistic for the hypotheses, Ho: PA=Pg and H, PA> Pg? 0.12 - 0.10 (12)(68) (10)(0.80) 80 90 0.10 - 0.12 (0.15)(0.85) (0.11)(0.89) 80 90 0.12 - 0.10 (0.13)(0.87) (0.13)(0.87) 80 90 0.10 - 0.12 z = (0.13)(0.87) + (0.13)(0.87) 80 90
Transcribed Image Text:Sampie cmps fro םשיסוטישיושה prant Ctemine uciccive cips. The Specians then takes a random sample of 90 chips from production at plant B and determines that there are 10 defective chips. Let pA = the true proportion of defective chips from plant A and pg = the true proportion of defective chips from plant B. Which of the following is the correct standardized test statistic for the hypotheses, Ho: PA=Pg and H, PA> Pg? 0.12 - 0.10 (12)(68) (10)(0.80) 80 90 0.10 - 0.12 (0.15)(0.85) (0.11)(0.89) 80 90 0.12 - 0.10 (0.13)(0.87) (0.13)(0.87) 80 90 0.10 - 0.12 z = (0.13)(0.87) + (0.13)(0.87) 80 90
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