Six Sigma Green Belt Certification Practice Exam

Question: 1 / 400

Your manufacturing process has following yields: Step 1: 98%, Step 2: 95%, Step 3: 87%, Step 4: 90%, Step 5: 75%. What is the rolled throughput yield (RTY) of this process?

54.7%

To calculate the rolled throughput yield (RTY), you multiply the individual yields of each step in the process together. This captures the overall efficiency of the entire process, considering that each step's yield affects the subsequent steps.

The formula for RTY is as follows:

RTY = Yield Step 1 × Yield Step 2 × Yield Step 3 × Yield Step 4 × Yield Step 5

Expressing the yields as decimals:

- Step 1: 98% = 0.98

- Step 2: 95% = 0.95

- Step 3: 87% = 0.87

- Step 4: 90% = 0.90

- Step 5: 75% = 0.75

Now, multiplying these together:

RTY = 0.98 × 0.95 × 0.87 × 0.90 × 0.75

Calculating this step-by-step:

1. 0.98 × 0.95 = 0.931

2. 0.931 × 0.87 = 0.810

3. 0.810 × 0.90 = 0.729

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55.0%

89.0%

45.3%

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