A black belt would use non-parametric statistical methods when
A. Knowledge of the underlying distribution of the population is limited
B. the measurement scale is either nominal or ordinal
C. the statistical estimation is required to have higher assurance
D. Management requires substantial statistical analysis prior to implementing
Which of the following techniques can be used in regression analysis to reduce higher- order terms in the model?
A. Large samples
B. Dummy variables
C. Transformations
D. Blocking
The null hypothesis should be:
A. rejected
B. not rejected
C. accepted
Voice of Customer is?
A. A table to collect raw voices of Customers
B. A software tool to automatically update customer feedbacks
C. First used in Measure phase
D. All of the above
The measure which helps to understand the spread of variation is called as __________
A. Quartile 1
B. Cpk
C. Mode
D. Variance
Data being used in the initial set-up of a process are assumed to have a normal distribution. If the nominal (target) is set at the center of the distribution, and the specification limits are set at ? from the center, then the Cpkis equal to
A. 0.25
B. 1.00
C. 1.33
D. 1.67
Which one of the following is not a Process Improvement Methodology?
A. Lean
B. Six Sigma
C. Theory of Constraints
D. Kano Model
The area under the curve value is 1, then the mean, median and mode values would be same (True/False)
A. True
B. False
The following contingency table was developed for an organization.
On the basis of this information, what is the expected number of oil changes for Station 1?
A. 70
B. 76
C. 80
D. 100
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