CQE Certified Quality Engineer Questions and Answers

An improvement in quality costs is MOST clearly indicated when:

Given the data below, what is the 90% confidence interval for the variance?

22, 23, 19, 17, 29, 25

What is the key ranking difference between the Deming philosophy and the Malcolm Baldrige award criteria?

The primary reason that nonconforming material should be identified and segregated is

Which of the following statements describes discrete data?

A normal (Gaussian) distribution curve is

Which of the following would be the MOST important considerations when establishing inspection points within a production operation?

Ⅰ. Inspection to prevent defects from entering the system.

Ⅱ. Inspection after all operations (both manual and automated).

Ⅲ. Inspection prior to a painting or masking operation.

An electronics firm was experiencing high rejections in their multiple connector manufacturing departments. "p" charts were introduced as part of a program to reduce defectives. Control limits were based on prior history, using the formula:

P' is the historical value of percent defective and n is the number of pieces inspected each week. After six weeks, the following record was accumulated

1,000 pieces were inspected each week in each department. Which department(s) exhibited a point or points out of control during this period (round off calculations to nearest tenth of a percentage point)?

Which of the following would be considered the WEAKEST reason to initiate an audit?

Determine the coefficient of variation for the last 500 pilot plant test runs of high temperature film having a mean of 900 Kelvin with a standard deviation of 54.

Compute the upper control limit for an s chart, based on a sample size of 10, if the process is in control with a mean of 40 and a sample standard deviation of 7.

Which of the following are the MOST logical reasons for providing source inspection?

Ⅰ. The supplier has consistently shown poor out-going quality.

Ⅱ. The key inspection points are hidden after assembly at the suppliers' plant.

Ⅲ. The supplier requests the inspection to save them potential shipping expenses.

Ⅳ. The criticality of the product warrants it.

If a distribution is skewed to the right

A box contains 27 black and 3 red balls. A random sample of 5 balls is drawn without replacement. What is the probability that the sample contains one red ball?

What are the major disadvantages of having an improvement team that is too large?

Ⅰ. Difficulty in having constructive input from the entire group.

Ⅱ. Difficulty in arriving at consensus.

Ⅲ. Difficulty in finding large meeting facilities.

Ⅳ. Difficulty, on the part of the recorder, in keeping up with more paperwork.

During the building phase of improvement team development, which of the following properly describes team activities?

Ⅰ. The team leader is usually directive.

Ⅱ. The team leader often delegates tasks.

Ⅲ. Team members prioritize and perform duties.

Ⅳ. Team members are uncertain of their duties.

Which of the following problem-solving tools is a column graph which displays a static picture of the process?

The hypergeometric distribution should be used instead of the binomial distribution when

Given the data below is normally distributed, and the population standard deviation is 3.1, what is the 90% confidence interval for the mean?

22, 23, 19, 17, 29, 25

How many outcomes are possible when performing a single trial of a binomial experiment?

Which of the following control charts are more efficient than an X-bar chart at detecting small shifts in the mean?

Ⅰ. CUSUM.

Ⅱ. EWQR.

Ⅲ. EWMA.