Six Sigma Black Belt Session 9 Correctly Answered Questions| UpToDate | Already Graded A+
A researcher believes that Drug A is more effective (has a larger mean) than Drug B. What is an appropriate alternative hypothesis for any test he may conduct (note: µ = mean)? A) µ A µ B B) µ A - µ B 0 C) µ B µ A D) All of the above E) None of the above : D) All of the above What is the false rejection of the null hypothesis called? A) Level of significance B) Type I error C) Level of confidence D) Confidence interval E) Type II error : B) Type I error 2 | P a g e The probability of obtaining a test statistic value at least as extreme as the observed test statistic (computed from the sample) under the assumption that the null hypothesis is true, is called the: A) P-value B) Level of significance C) Type I error D) Level of confidence E) Type II error : A) P-value Which one of the following tests CANNOT be used with matched (paired) samples? A) Mann-Whitney-Wilcoxon test B) Sign test C) Wilcoxon Signed Ranks test D) T-test : A) Mann-Whitney-Wilcoxon test Which of the following is true of the Mann-Whitney-Wilcoxon test? A) It is an extension of the Wilcoxon Signed Ranks test to two or more independent populations. B) It uses matched samples to determine whether the distributions of two continuous populations are identical to or different from one another. C) It is a more powerful alternative to the Sign te
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