CPP Data Analysis & Reporting 3

Question 1

A packaging supplier provides a Certificate of Analysis (CoA) with each shipment. The PRIMARY purpose of reviewing the CoA is to:

Accepted Answer

Confirm incoming material meets specification before use

Answer

A CoA documents test results for a specific lot, allowing the receiver to verify that incoming materials meet agreed-upon specifications prior to use in production.

Question 2

When analyzing packaging line throughput data, the mean output is 500 units/hour but the median is 430 units/hour. This discrepancy most likely indicates:

Accepted Answer

High-output outlier events are skewing the mean upward

Answer

When the mean significantly exceeds the median, positive outliers (unusually high production bursts) are pulling the mean up, indicating right-skewed data.

Question 3

In a packaging operation, which chart would BEST display the proportion of defective units across five different production shifts?

Accepted Answer

p-chart

Answer

A p-chart monitors the proportion of defective items in subgroups of varying sizes, making it appropriate for tracking defect rates across shifts.

Question 4

A packaging specification report uses Cpk to evaluate process capability. A Cpk of 0.95 means the process is:

Accepted Answer

Marginally capable and likely producing some defects

Answer

Cpk below 1.00 indicates the process is not capable of consistently meeting specifications and is producing some out-of-spec product.

Question 5

Which technique would a packaging analyst use to determine which combination of factors (temperature, pressure, dwell time) most affects seal integrity?

Accepted Answer

Design of Experiments (DOE)

Answer

DOE systematically varies multiple factors simultaneously to identify main effects and interactions that influence a response variable like seal integrity.

(CPP) Certified Packaging Professional Practice Test

(CPP) Certified Packaging Professional Practice Test

CPP Data Analysis & Reporting 3