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NEW QUESTION 25
If a sample size of 16 yields an average of 12 and standard deviation of 3, estimate the 95% confidence interval for the population (assume a normal distribution).

NEW QUESTION 26
The basic elements of an ultrasonic test systems do NOT include which of the following?

NEW QUESTION 27
Which of the following is a valid null hypothesis?

NEW QUESTION 28
Which of the following are TRUE statements regarding the use of visual inspection?
. Reference standards can be used.
. It provides consistency between inspectors.
. It is relatively expensive.
. It can be quickly performed.

NEW QUESTION 29
When requesting “worst case” design analysis, you expect the reliability group to

NEW QUESTION 30
What percentage of the area under the standard normal curve is included within (+/-) 1.5 standard deviations from 0?

NEW QUESTION 31
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 of five was taken and the pieces measured 36, 43, 37, 25, and 38. At the time, this sample was taken:

NEW QUESTION 32
When asked to make recommendations on how to correct any deficiencies noted in the exit report, the auditor(s) should

NEW QUESTION 33
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 correct?
. The average of the logarithms of the values is lognormally distributed.
. The standard deviation of the averages is equal to the standard deviation of the individuals divided by the square root of 20.
. The variance of the averages is equal to the variance of the individuals divided by the square root of 20.

NEW QUESTION 34
In nonparametric statistics:
I. No assumptions are made concerning the distribution from which the samples are taken.
II. The parameters of the distribution do not relate to the parameters of the sample.
III. The sample and the distribution must have no parameters in common.

NEW QUESTION 35
Benchmarking might be defined as any of the following EXCEPT:

NEW QUESTION 36
Which of the following statements BEST describes a bimodal distribution?

NEW QUESTION 37
A vendor may be audited both before and during the execution of a contract. During such a vendor
audit, the focus may be directed at the management and resource management of the company. Which of the following areas would be EXCLUDED during such an audit?

NEW QUESTION 38
The primary advantage of the Latin square design, compared to the factorial design, is that

NEW QUESTION 39
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 centerline on the X-bar chart is expected to be approximately which of the following?

NEW QUESTION 40
The design function which assigns probability of failures between components or subsystems is called

NEW QUESTION 41
Inspection operations typically

NEW QUESTION 42
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)?

NEW QUESTION 43
In most cases, an improvement team facilitator will NOT normally:

NEW QUESTION 44
A system was designed with 3 capacitors. When the system is first activated all capacitors are operating.
The system continues to operate as long as at least 1 capacitor is operating. This is an example of