FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 10: Quality Control

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 61

Multiple Choice

Review LaterAdd Note

Review Later

A control chart used to monitor the fraction of defectives generated by a process is the

A) p-chart.
B) R-chart.
C) x-bar chart.
D) c-chart.
E) Gantt chart.

F) None of the above
G) A) and D)

Correct Answer

verified

Show Answer

Question 62

True/False

Review LaterAdd Note

Review Later

A p-chart is used to monitor the fraction of defectives in the output of a process.

A) True
B) False

Correct Answer

verified

Show Answer

Question 63

Multiple Choice

Review LaterAdd Note

_____ variation is a variation whose cause can be identified.

When a process is in control, it results in there being, on average, 16 defects per unit of output. c-chart limits of 8 and 24 would lead to a _____ percent chance of a Type I error.

The chair of the operations management department at Quality University wants to construct a p-chart for determining whether the four faculty teaching the basic P/OM course are in control with regard to the number of students who fail the course. Accordingly, he sampled 100 final grades from last year for each instructor, with the following results What is the estimate of the mean proportion of failures for these instructors?

A c-chart is used to monitor the total number of defectives in the output of a process.

Range charts are used mainly with attribute data.

A lower control limit must by definition be a value less than an upper control limit.

The basic issues of inspection include all of the following except

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results What is the estimate of the sample average range based upon this limited sample?

The number of defective parts in a sample is an example of variable data because it will "vary" from one sample to another.

A control chart used to monitor the process mean is the

A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results What is the estimate of the process proportion of defectives?

This step in the control process includes adjustments when a process is found to be out of control.

A time-ordered plot of representative sample statistics is called a(n)

Low-cost, high-volume items often require more intensive inspection than other types of items.

An R value of zero (on a range chart)means that the process must be in control since all sample values are equal.