MR Data Analysis and Interpretation 2

Question 1

A Management Representative notices that customer complaint data shows a spike every third month. Which analysis technique best identifies this pattern?

Accepted Answer

Time-series analysis

Answer

Time-series analysis plots data over time and is specifically designed to reveal cyclical or periodic patterns.

Question 2

When interpreting a control chart, which condition indicates a process is out of statistical control?

Accepted Answer

Seven consecutive points on one side of the centerline

Answer

Seven consecutive points on one side of the centerline is a classic run rule indicating a non-random, out-of-control condition.

Question 3

An MR needs to prioritize corrective actions across 12 defect types. Which tool will most efficiently identify the vital few causes?

Accepted Answer

Pareto chart

Answer

A Pareto chart ranks defect types by frequency and highlights the vital few that account for the majority of problems (80/20 rule).

Question 4

In a supplier audit, data shows process capability index Cpk = 0.85. What does this indicate?

Accepted Answer

The process is not capable of consistently meeting specifications

Answer

A Cpk below 1.0 indicates the process cannot consistently produce output within specification limits.

Question 5

Which sampling method ensures every unit in a large batch has an equal chance of being selected for inspection?

Accepted Answer

Simple random sampling

Answer

Simple random sampling gives every unit an equal and independent probability of selection, eliminating selection bias.

(MR) Management Representative Certification Practice Test

(MR) Management Representative Certification Practice Test

MR Data Analysis and Interpretation 2