Lean Six Sigma Black Belt ICBB Updated Exam

IASSC Lean Six Sigma - Black Belt Questions and Answers

Question 13

An ANOVA used across many dependent variables could increase the Beta risk.

True

False

Question 14

A valid Multiple Linear Regression (MLR) is characterized by all of these except _______________________.

It is an assumption that the X’s (inputs) are not correlated to each other

The X’s (inputs) are assumed to be independent of each other

MLR is conducted based on a deliberate form of experimentation

The Residuals from MLR analysis have to be Normally Distributed

Question 15

Which statement is NOT correct about the Fitted Line Plot shown here?

The independent variable is the reactant

If the reactant was 6 units, with 95 % confidence we would expect a minimum yield of 100 units

With at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1

A reactant value between 2 and 4 units yields around 20 to 40

When the reactant increases, the expected yield would increase

Question 16

Some of the sources for different types of error that can be quantified using Statistical Analysis are which of these?

Error in sampling

Bias in sampling

Error in measurement

All of the above