Measure Phase Tools Flashcards
7 cards from real Lean Six Sigma Yellow Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Measure Phase Tools flashcards as text
Which type of data is counted in discrete units and cannot be subdivided, such as the number of defective items?
Answer: Attribute data
Attribute (discrete) data represents counts of events or defects and cannot take on fractional values.
A process capability index of Cp = 1.33 indicates that a process is:
Answer: Capable with some margin
Cp = 1.33 means the process spread fits within the specification limits with a reasonable safety margin, generally considered capable.
In a measurement system analysis (MSA), 'reproducibility' refers to:
Answer: Variation caused by different operators measuring the same part
Reproducibility measures how consistently different operators obtain the same result when measuring the same part with the same gauge.
What does the 'sigma level' of a process primarily describe?
Answer: How many standard deviations fit between the mean and the nearest specification limit
Sigma level indicates how many standard deviations exist between the process mean and the closest specification limit, reflecting process performance.
A run chart is most useful for:
Answer: Detecting trends or shifts in process performance over time
Run charts plot data in time sequence, making them ideal for spotting trends, cycles, or shifts before applying control charts.
When constructing a histogram, the height of each bar represents:
Answer: The frequency or count of data points within that interval
Each bar in a histogram shows how many data points fall within that class interval, revealing the data's distribution shape.
Which measurement scale allows for meaningful ratios between values and has a true zero point?
Answer: Ratio scale
Ratio scales have a true zero (absence of the quantity) and support all arithmetic operations including ratios, such as weight or length.