Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) define 
B) compare 
C) measure 
D) evaluate 
E) correct 
A) define 
B) compare 
C) measure 
D) evaluate 
E) correct

Question 4

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?

Accepted Answer

A) .10 
B) .11 
C) .13 
D) .16 
E) .40 
A) .10 
B) .11 
C) .13 
D) .16 
E) .40

Question 5

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?

Accepted Answer

A) 13.0 
B) 4.33 
C) 5.4 
D) 4.2 
E) 2.0 
A) 13.0 
B) 4.33 
C) 5.4 
D) 4.2 
E) 2.0

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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.

Accepted Answer

A) 68.26 
B) 95.44 
C) 31.74 
D) 0.26 
E) 4.56 
A) 68.26 
B) 95.44 
C) 31.74 
D) 0.26 
E) 4.56

Question 11

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?

Accepted Answer

A) .08 
B) .06 
C) .04 
D) .02 
E) .01 
A) .08 
B) .06 
C) .04 
D) .02 
E) .01

Question 12

A control chart used to monitor the process mean is the

Accepted Answer

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

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

The basic issues of inspection include all of the following except

Accepted Answer

A) how much to inspect and how often 
B) whether to inspect in a centralized or on-site location 
C) at what points in the process inspection should occur 
D) whether to inspect attributes or variables 
E) what will be the total cost involved 
A) how much to inspect and how often 
B) whether to inspect in a centralized or on-site location 
C) at what points in the process inspection should occur 
D) whether to inspect attributes or variables 
E) what will be the total cost involved

Question 15

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

Accepted Answer

A) Gantt chart. 
B) simo chart. 
C) control chart. 
D) up-down matrix. 
E) standard deviation table. 
A) Gantt chart. 
B) simo chart. 
C) control chart. 
D) up-down matrix. 
E) standard deviation table.

Question 16

_____ variation is a variation whose cause can be identified.

Accepted Answer

A) Assignable 
B) Controllable 
C) Random 
D) Statistical 
E) Theoretical 
A) Assignable 
B) Controllable 
C) Random 
D) Statistical 
E) Theoretical

Question 17

Range charts are used mainly with attribute data.

Accepted Answer

A) True 
 B)False

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

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

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

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

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

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

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

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.

A control chart used to monitor the process mean is the

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

The basic issues of inspection include all of the following except

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

_____ variation is a variation whose cause can be identified.

Range charts are used mainly with attribute data.

Introduction to Operations Management

Competitiveness, Strategy, and Productivity

Forecasting

Product and Service Design

Strategic Capacity Planning for Products and Services

Process Selection and Facility Layout

Work Design and Measurement

Location Planning and Analysis

Management of Quality

Aggregate Planning and Master Scheduling

Inventory Management

MRP and ERP

Jit and Lean Operations

Supply Chain Management

Scheduling

Project Management

Management of Waiting Lines

Linear Programming

Filters

Exam 10: Quality Control

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

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

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

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

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

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

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

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.

A control chart used to monitor the process mean is the

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

The basic issues of inspection include all of the following except

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

_____ variation is a variation whose cause can be identified.

Range charts are used mainly with attribute data.

Introduction to Operations Management

Competitiveness, Strategy, and Productivity

Forecasting

Product and Service Design

Strategic Capacity Planning for Products and Services

Process Selection and Facility Layout

Work Design and Measurement

Location Planning and Analysis

Management of Quality

Aggregate Planning and Master Scheduling

Inventory Management

MRP and ERP

Jit and Lean Operations

Supply Chain Management

Scheduling

Project Management

Management of Waiting Lines

Linear Programming

Filters