OPTIONS He committed a Type I error He committed a Type II error He committed a Type III error None of the above ANSWER He committed a Type I error EXPLANATION The condition described in the question best meets the description of a Type I...
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS Z testF testT testANOVA ANSWER T test EXPLANATION Typically for sample size less than 30, one would use the T test.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS 36%, 64% 32%, 68% 38%, 62% 40%, 60% ANSWER 38%, 62% EXPLANATION Using standard confidence intervals formula, 38%, 62% is correct.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS Normal Distribution T distribution Chi-Square Distribution Binomial ANSWER Chi-Square Distribution EXPLANATION Chi-Square distribution is typically used for determining confidence intervals for variances, so Chi-Square Distribution is correct.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS 0.025 0.0025 0.02 0.05 ANSWER 0.025 EXPLANATION Using Chi-Square confidence intervals, the correct answer is 0.025.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS 19,21 18,22 19.5,20.5 18.5,21.5 ANSWER 19.5,20.5 EXPLANATION Using confidence intervals formula, 19.5,20.5 is correct.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS Coefficient of Variance Deviation Mean Deviation Sum of Squares ANSWER Mean Deviation EXPLANATION Mean Deviation is the average of absolute mean deviations.
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS Standard errors of coefficients go high Statistical accuracy goes down Variance of the Regression model increases Regression model is unstable ANSWER Variance of the Regression model increases EXPLANATION A model having a high VIF will always show slightly higher variance, which is a skewed...
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS Since VIF > 0, the variables are collinear Since VIF < 5, variables being collinear is not much of an issue High degree of collinearity amongst variables None of the above ANSWER Since VIF < 5, variables being collinear is not much of an...
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December 8, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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OPTIONS That the data may be incorrect That the data may suffer from a lack of fit That the data may be an effect of special cause variability That the data needs treatment ANSWER That the data may be an effect of special cause variability...
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December 7, 2021 admin
Certification Exams Questions, LSSBB/ Lean Six Sigma Black Belt
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