CertifQ

OPTIONS 5S Kanban Poka-yoke Kaizen ANSWER Kanban EXPLANATION Kanban is a Japanese term that literally means ‘sign-board.’ Kanban is a scheduling system for lean and Just-In-Time (JIT) production.

OPTIONS residuals convergence error non-response bias estimators ANSWER residuals EXPLANATION The difference between actual and predicted points is called residuals.

OPTIONS Organizational block Organizational split Inadequate specialization Confusion of frontline roles ANSWER Organizational block EXPLANATION Typically there are organizational boundaries which might result in people not sharing information. These are typically categorized as organizational block.

Machines A and B have been showing disparate efficiency and defects per unit rate despite similar variation in quality at purchase time. If the mean squares between the 2 machines is 250 and the mean square from each machine 100, what is the value of...

OPTIONS Multiple regression ANOVA Paired-difference testS Z-test ANSWER ANOVA EXPLANATION ANOVA is a statistical test that evaluates the difference among means of three or more samples. In this example , each of the eight tyres could be tested and the average expected mileage is recorded....

OPTIONS Non-response error Confidence interval Lazy consumer error Mailing error ANSWER Non-response error EXPLANATION Since 94% of the customers have not responded to the surveys, it is termed as non-response error.

OPTIONS 1.33 standard deviation 1.67 standard deviation 1.96 standard deviation 2.67 standard deviation ANSWER 1.33 standard deviation EXPLANATION The interquartile range of a normal distribution is 1.33 standard deviations.

OPTIONS Sigma Standard deviation Sum of squares Sum of rectangles ANSWER Standard deviation EXPLANATION In standard deviation calculations, “s” stands for standard deviation.

OPTIONS F-test Tukey Kramer Levene test for homogeneity of variance Tukey multiple comparison ANSWER Tukey multiple comparison EXPLANATION Tukey Multiple Comparison is not a one-way analysis of variance.

OPTIONS Only blind attendants are used. Special types of blinds are used. Samples are kept confidential from customers. Samples are kept confidential from testers. ANSWER Samples are kept confidential from testers. EXPLANATION Double blind experimental design means that the samples are kept confidential from testers.