# q05_sol - ISyE2028A,Fall2010 SolutionstoQuiz5(versionA&B)...

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ISyE2028A, Fall 2010 Version A: 1. In testing hypotheses on the population variance, which one of the following is the test statistic? A. ሺ୬ିଵሻ± , where n is the sample size, S is the sample variance and σ is from H : σ ൌσ . B. ሺ୬ିଵሻ± , where n is the sample size, S is the sample variance and σ is from H : σ ൌσ . C. ሺ୬ିଵሻ± , where n is the sample size, S is the population variance and σ is from H : σ ൌσ . D. ሺ୬ିଵሻ± , where n is the sample size, S is the population variance and σ is from H : σ ൌσ . Answer: A 2. In a manufacturing process, the defective rate needs to be controlled at no more than 0.05. 200 samples are taken and 4 of them are found to be defective. A hypothesis test is carried out for the true defective rate. The null hypothesis is H : pൌ0 .05 . Which one of the following is an appropriate alternative hypothesis in this case?

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## This note was uploaded on 11/16/2010 for the course ISYE 2028 taught by Professor Shim during the Fall '07 term at Georgia Tech.

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q05_sol - ISyE2028A,Fall2010 SolutionstoQuiz5(versionA&B)...

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