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Question:

Factory A produces 100 pieces of wooden legs used in manufacturing tables in 1 hour. The factory in total works for 3 hours. The quality manager decided to check the quality of the output by measuring the length of the legs (in cms). He decides to collect three samples (one for each hour). The sample size for each sample is fixed at 5. The data collected is present in the following table: Leg 1 Leg 2 Leg 3 Leg 4 Leg 5 Sample 1 10.2 10.5 9.8 9.7 10.3 Sample 2 10.4 9.9 10.1 10.2 9.8 Sample 3 9.9 9.8 10.2 10.1 10.4 What is the mean and range of leg length in sample 1?
  1. Mean=10.3;Range=.3
  2. Mean=10.1;Range=.8
  3. Mean=10.2;Range=.6
  4. Mean=9.9;Range=.5






Q2. ______________ are used in six sigma

  1. black belt
  2. green belt
  3. both black belt and green belt
  4. none of the Above
Correct Answer

Q3. The OC curve provides a measure of the ______________ of the control chart.

  1. Sensitivity
  2. Duality
Correct Answer

Q4. Cause and Effect Diagram can be used in the ______________ and ______________ step of DMAIC.

  1. Define, Measure
  2. Analyze, Control
  3. Analyze, Improve
  4. Define, Improve
Correct Answer

Q5. How many dependent variables does a two-way ANOVA have?

  1. One
  2. Two
  3. Three
  4. Four
Correct Answer

Q6. Average Total Inspection is defined as:

  1. Average of rejected lots and accepted lots
  2. Average number of units inspected per lot
  3. Average of rejected Lots
  4. Average of accepted Lots
Correct Answer

Q7. In a double sampling plan, let d1 be the number of defects in the first sample and d2 be the number of defects in the second sample. Let c2 be the acceptance number for both samples. The condition for rejection is:

  1. D1+d2
  2. D1+d2>c2
  3. D1*d2>c2
  4. D1*d2
Correct Answer

Q8. The concept that states: "the optimal quality level is reached at the point where the incremental revenue from product improvement equals the incremental cost to secure it" comes from:

  1. quality control analysis
  2. marginal analysis
  3. standard quality analysis
  4. conformance analysis
  5. systems analysis
Correct Answer

Q9. Two factors are said to interact when

  1. the simple main effects of one factor are not homogeneous across all levels of the other.
  2. the simple main effects of one factor are homogeneous across the levels of the other.
  3. there are neither main effects nor simple main effects.
  4. there are no main effects.
Correct Answer

Q10. Which of the following is not true regarding when to select a p, c or u chart:

  1. The process is a complex assembly operation and product quality is measured in terms of the occurrence of nonconformities, successful or unsuccessful product function, and so forth.
  2. Process control is necessary, but measurement data cannot be obtained.
  3. A historical summary of process performance is necessary.
  4. Destructive testing (or such other expensive testing procedures) is required.
Correct Answer








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