CSSBB Exam Dumps : Certified Six Sigma Black Belt

The correct answer is B. The team should agree on the evaluation criteria as part of the start of the project . The supplemental Lean Six Sigma material explains that effective project evaluation must be fair, systematic, rigorous, and measurable , and it emphasizes SMART team goals upfront along with clear accountability and plain-sight measures of success. This means the criteria for evaluating progress must be established early, not later in the Measure phase.

A team cannot properly evaluate progress if it does not already know what success looks like and how it will be measured. Narrative self-evaluations are not the main mechanism for tracking project goals, and the facilitator should not unilaterally set the goals and objectives. Instead, the team needs shared agreement at the beginning so progress can be assessed consistently over time. This supports accountability, buy-in, and objective review of milestones and deliverables. Therefore, the verified answer is B .

PPM means parts per million and is calculated as defectives divided by total units, multiplied by 1,000,000. Since there is one opportunity per unit, the PPM calculation can be applied directly from the table values.

For January:

Facility X = 152 / 15,200 × 1,000,000 = 10,000 PPM

Facility Y = 123 / 12,500 × 1,000,000 = 9,840 PPM

Lower PPM indicates better quality performance, so Facility Y performed better in January.

For February:

Facility X = 161 / 17,000 × 1,000,000 ≈ 9,471 PPM

Facility Y = 141 / 14,000 × 1,000,000 ≈ 10,071 PPM

Again, lower PPM is better, so Facility X performed better in February.

This is a standard Measure Phase and process-performance comparison exercise because Black Belts often normalize defect data into PPM to compare sites with different production volumes. Raw defect counts alone can mislead, but PPM creates a fair basis for comparison. Therefore, the correct answer is D: January, Facility Y; February, Facility X.

The correct answer is B. xₘ − x . The CSSBB source defines bias as the difference between the output of the measurement system and the true value . It is often referred to as accuracy . The formal definition in the instructor text is the average measured value minus the value of the standard or true value.

Using the notation in this question, where xₘ is the measured value and x is the true value, the bias is simply:

Bias = xₘ − x

This gives both the size and the direction of the bias. If the result is positive, the gage overestimates. If it is negative, the gage underestimates. That is important in Six Sigma measurement system analysis because the team needs to know not only how far off the measurement system is, but also whether it consistently reads high or low. The ratio in option A is not the definition of bias, option C is a relative or percent-type expression, and option D removes the direction of the error. Therefore, the verified CSSBB answer is B .