CQE Exam Questions

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

Which of the following actions or techniques is MOST useful in determining the original fundamental cause of a product or process nonconformance?

What order do the following corrective action steps normally take for nonconforming product? . Analyze the problem.

Of the problem solving categories below, what is the usual sequence? 1. Select a problem needing improvement. 2. Collect data. 3. Implement the solution. 4. Determine if project is...

The descriptive name for a fishbone or Ishikawa diagram is which of the following?

What is the standard deviation of the values below? 4.5, 5.1, 6.2, 2.1, 3.9

Regardless of the distribution of the individuals, the distribution of the average of n samples will follow which distribution as n becomes large?

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?

Which of the following distributions have the set of all real numbers as their domain?

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.

According to Tchebysheff's theorem what % of measurements must lie within 2.5 standard deviations of the mean?

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

The distribution of a characteristic is negatively skewed. The sampling distribution of the mean for large samples is:

If a distribution is skewed to the right

If the probability of a success on a single trial is 0.2 and 3 trials are performed, what is the probability of at least one success?

A process is turning out end items that have defects of type A or type B or both. If the probability of type A defect is 0.1 and of a type B is 0.2, the probability that an end ite...

What is the standard deviation of the following data? 3.2, 3.1, 3.3, 3.3, 3.1

Periodically, a sample of 20 items are randomly selected from a population that is normally distributed, the average is computed, and plotted. Which of the following statements is...

If a distribution is skewed to the left, the median will always be

The expression below is which of the following?

Which of the following distributions models events that have 2 possibilities on each trial?

The equation below represents the:

The weight of paint cans is considered

A bin contains 40 pills with a weight of 3.1 gm. each, 30 pills weighing 3.2 gms each and 10 pills weighing 3.3 gms each. The weight of an average pill is found from

The following measurements for a sample with dimension X are representative of a process known to be in statistical control 42, 52, 64, 45, 53, 56, 70, 57, 49, 62 Which of the foll...

An X-bar and R chart with n=5 has been plotted for some time and has demonstrated random variation. Upon review of the last 30 plot points, the expected number of runs around the c...

What is the lower control limit for proportion defective if the average daily production is 5000 units and the average fraction defective is 0.02?

A single sampling plan calls for a sample size of 80 with an acceptance number of five and a rejection number of six If the quality of the submitted lots 10 percent defective. then...

You have been asked to sample a lot of 500 units from vendor whose past quality has been about 2% defective. A sample of 40 pieces is drawn from the lot and you have been told to r...

When using a control chart, a point plotting within the limits on the chart is

An X-bar and R chart was prepared for an operation using twenty samples with five pieces in each sample; X-bar was found to be 33.6 and R-bar was 6.20. During production, a sample...

Select the incorrect statement from among the following. The IDs of a certain piece of tubing are normally distributed with mean 1.00". The proportion of tubing with IDs less than...

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.

What percentage of the area under the standard normal curve is included within (+/-) 1.5 standard deviations from 0?

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

A process has been experiencing problems lately. The operators charting the process have identified the cause to be due to a change in incoming materials. This problem is

A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210?

When used together for variables data, which of the following pair is the MOST useful in preparing control charts?

An X-bar chart has shown control for a long time. You see that points for the last 50 samples are all very near the center line on the chart. In fact, they are all within one sigma...

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. Co...

A typical use for the optical comparator would be to measure

The Dodge-Romig tables are designed to minimize which of the following parameters?

The MOST essential value of a surface plate in precision measurement application is which of the following?

Which of the following are TRUE statements regarding the use of visual inspection?

Which of the following is the BEST statement to make regarding the relationship between product precision and product production?

The maximum allowable percent defective for the process average is the

Applications for surface plate includes which of the following?

A process is in control with a defect rate of 0.2%. A sampling plans calls for 30 items to be selected at random, and for the process to be shut down and corrected if any defects a...

Which of the following nondestructive testing methods can be used to evaluate sub-surface discontinuities in aluminum bar stock?

The use of 100% inspection normally means