LSSMBB Practice Test

LSSMBB Practice Test practice questions, page 15 of 16, with answer review and explanations.

Question 71

Given repeatability ֿƒRPT =4 and reproducibility ֿƒRPD = 3, calculate precision ֿƒMS

  1. ֿƒMS = 3
  2. ֿƒMS = 7
  3. ֿƒMS = 25
  4. ֿƒMS = 5

Question 72

The following is the best description for the purpose of a process map:

  1. It is a tool used only after a Six Sigma project is completed
  2. It is a tool to convert customer requirements to a set of measurable technical requirements with target values.
  3. It is a tool for identifying alternative solutions or concepts
  4. It is a tool used to identify all major steps, outputs, and inputs to look for potential causes of a problem.

Question 73

While checking regression model assumptions, an engineer generates the following plot of residuals versus predicted Y. Which of the actions below is the most appropriate next step?

  1. Transform the response and re-fit the model
  2. Make additional runs, collect additional data and re-fit the model
  3. No transformation is required for this type of pattern
  4. Transform the independent variable and re-fit the model

Question 74

In a regression analysis, model assumptions are validated using which of the following?

  1. The ANOVA table
  2. A plot of X versus predicted/fitted Y
  3. Chi-square statistic
  4. Residual diagnostics

Question 75

For a multiple regression model, the R2 is the parameter that:

  1. Represents the fraction of total variation explained by the model
  2. Explains the strength of only one of the inputs in the model
  3. Explains if the input factor causes the output response
  4. Quantifies the slope of the line in the model