TS BB Day 4 Quiz

Which of the follow is a visual method to brainstorm root causes?

• Excel Spreadsheet

• Minitab

• MSA

• Fishbone Diagram

What is the main purpose of Multi-Vari Chart?

• To brainstorm root causes

• To increase the number of solutions

• To reduce a large number of root causes

• To increase number of project ideas

Which are used in the calculation of Risk Priority Number (RPN) in FMEA? Multiple Correct Answers

• Severity of effects

• Occurrence ( probability of failure)

• Likelihood of Detection

• Project Risk Index

Which is type 1 error (Alpha risk) in hypothesis testing?

• Reject null hypothesis when it is actually true

• Accept null hypothesis when it is actually false.

• Risk in determining sampling size

• Risk in determining Project Y

What is the main purpose of normality test?

• To see whether your stakeholder is normal.

• To check if our data set is normally distributed.

• To check where the results fall with normal levels.

• To check whether the root cause is normal

Which of the following statistical tool do you use when both your project Y and X data are discrete?

• ANOVA

• Regression

• 2 Sample t test

• Chi-Square ( Test of Proportions)

What statistical conclusions do you draw if P value is low (less than 0.05)?

• Accept Null Hypothesis at 95% confidence level

• Reject Null Hypothesis at 95% confidence level

• Reject Null Hypothesis at 90% confidence level

• Accept Null Hypothesis at 90% confidence level

When is simple linear regression used?

• To examine whether you know statistics

• To examine the relationship between 2 continuous variables ( Y & X)

• To compare 2 sets of continuous data

• To check whether regression is suitable for statistical analysis.