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Supplement. Statistical Quality Control MCQ

_______ is used to illustrate the probability of accepting a shipment as a function of the shipment’s quality.

Producer’s risk

A type-I error

Consumer’s risk

An operating characteristic curve

Answer

Correct Answer: An operating characteristic curve

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When a buyer accepts a shipment of low-quality goods because the sample met its acceptance standard, it is called _______.

Producer’s risk

A type-I error

Consumer’s risk

An operating characteristic curve

Answer

Correct Answer: Consumer’s risk

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The _______ shows whether the process mean has shifted away from the design targets and is off-center.

Acceptance sampling

Process capability index

Control limit

None of the above

Answer

Correct Answer: Process capability index

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If the Cpkis greaterthan 1.0,

The process is deemed capable of meeting the design specifications

The process is not capable of meeting the design specifications

Cpk has no relationship to meeting design specifications

None of the above

Answer

Correct Answer: The process is deemed capable of meeting the design specifications

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The control limits for this control chart, _______, are based on the assumption of a Poisson probability distribution of the item of interest.

R chart

P chart

C chart

chart

Answer

Correct Answer:

C chart

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A C chart is a control chart for attribute data

That monitors the percent defective in each sample

That counts the number of defects per unit of output

Used to track central tendency

Used to track variations of the measurements within each sample

Answer

Correct Answer: That counts the number of defects per unit of output

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Which of the following is a control chart for attribute data?

R chart

V chart

C chart

A chart

Answer

Correct Answer: C chart

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To assess whether a variable process is in control, you

Can review the R chart only

Can review the chart only

Must view both of the charts in unison

Do not need either chart to determine this

Answer

Correct Answer: Must view both of the charts in unison

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An R chart is used to track

The central tendency of the sample means

Three standard deviations above the mean

Sample ranges

The number of defects per unit of output

Answer

Correct Answer: Sample ranges

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Which of the charts listed below is for variable data?

P chart

R chart

C chart

V chart

Answer

Correct Answer: R chart

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An example of _______ is continuous process data, such as the time to serve a customer.

Natural variations

Assignable variations

Variable data

Attribute data

Answer

Correct Answer: Variable data

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An example of _______ is yes/no or pass/fail process dat.

Natural variations

Assignable variations

Variable data

Attribute data

Answer

Correct Answer: Attribute data

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An example of _______ is differences in humidity caused by changing weather conditions.

Natural variations

Assignable variations

Variable data

Attribute data

Answer

Correct Answer: Natural variations

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X̅̅ is the centerline of the x̅ chart

True

False

Answer

Correct Answer: True

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X̅ chart used to track the ______ of the sample means .

Disinclination

Reluctance

Unwillingness

Central tendency

Answer

Correct Answer: Central tendency

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X̅ is for variable data, the ______ of a sample’s measurements

Mean

Chart

None of these

Answer

Correct Answer: Mean

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Variable Data is continuous process data, such as _______ .

Weight

Time

Length

All of these

Answer

Correct Answer: All of these

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A line that is three standard deviations above the mean, so that 99.7% of the sample plots fall inside this limit is known as ______ .

Type-I Error

Type-II Error

Upper Control Limits

None of these

Answer

Correct Answer: Upper Control Limits

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Type-II Error is when consumer’s risk occurs in acceptance sampling.

True

False

Answer

Correct Answer: True

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When producer’s risk occurs in acceptance sampling is known as ______ .

Type-I Error

Type-II Error

Upper Control Limits

None of these

Answer

Correct Answer: Type-I Error

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Statistical Process Control allows workers to take corrective steps quickly if the control charts indicate the start of an out-of-control situation.

True

False

Answer

Correct Answer: True

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R Chart used to track sample ranges, or the variation of the measurements within each sample .

True

False

Answer

Correct Answer: True

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R̅ is the centerline of the R chart .

True

False

Answer

Correct Answer: True

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The difference between the largest and the smallest measurement in one sample.

R Chart

R̅

None of these

Answer

Correct Answer: R

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Producer’s Risk is when a buyer rejects a shipment of ______ goods because the sample quality level did not meet its acceptance standard.

High-quality

Low-quality

Both a & b

None of these

Answer

Correct Answer: High-quality

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Which process has shifted away from the design target and is off-center ?

Process Capability

Process Capability Index

Producer’s Risk

None of these

Answer

Correct Answer: Process Capability Index

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A measure of the ability of a process to consistently produce a product or service within design specifications is known as _____ .

Process Capability

Process Capability Index

Producer’s Risk

None of these

Answer

Correct Answer: Process Capability

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Which monitor the percent defective in each sample.

P Charts

Control chart

Both a & b

None of these

Answer

Correct Answer: P Charts

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Operating Characteristic Curve used to illustrate the probability of accepting a shipment as a function of the shipment’s quality .

True

False

Answer

Correct Answer: True

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Natural Variations _______ process variations

Uncontrollable

Controllable

Both a & b

None of these

Answer

Correct Answer: Uncontrollable

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Lower Control Limits is a line that is three standard deviations below the mean.

True

False

Answer

Correct Answer: True

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Lot Tolerance Percent Defectives defines the ______ of percent defectives a consumer is willing to tolerate.

Upper limit

Lower limit

Both a & b

None of these

Answer

Correct Answer: Upper limit

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Control limits are typically _______ standard deviations from the population mean, which contains 99.73% of the sampling distribution .

±2.0

±4.0

±3.0

±1.0

Answer

Correct Answer: ±3.0

Note: This Question is unanswered, help us to find answer for this one

Allowing managers to monitor samples of process performance is known as _______ .

Control charts

Control Limits

Both a & b

None of these

Answer

Correct Answer: Control charts

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Consumer’s risk is when a buyer accepts a shipment of low-quality goods .

True

False

Answer

Correct Answer: True

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Control charts for attribute data that count the number of defects per unit of _____ .

Output

Input

Both input & output

None of these

Answer

Correct Answer: Output

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Attribute Data indicates the presence of some attribute such as color, _______ .

Satisfaction

Workability

Beauty

All of these

Answer

Correct Answer: All of these

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Assignable Variation is a process variation that can be traced to a specific “fixable” cause.

True

False

Answer

Correct Answer: True

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When shipments of a product are received from suppliers is known as ______.

Acceptance Sampling

Assignable Variations

Attribute Data

Lower Control Limits

Answer

Correct Answer: Acceptance Sampling

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Acceptable quality level is the percentage of defects the consumer is willing to accept.

True

False

Answer

Correct Answer: True

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Acceptable Quality Level the _______ of defects the consumer is willing to accept .

Percentage

Maximum

Minimum

None of these

Answer

Correct Answer: Percentage

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More Operations Management Subjects

Introduction to Managing Global Operations

Operations and Supply Chain Strategies

Project Management

Product And Service Innovations

Reliability of Operations Management

Managing For Quality

Quality Improvement and Control Tools

Capacity Planning

Supply Chain Design And Location Planning

Process Design and Layout Planning

Tools For Analyzing and Designing

Supplier Management

Logistics Management

Demand Management And Customer Service

Demand Forecasting Methods

Lean Operations And Supply Chains

Inventory Management

Inventory Control Models

Sales and Operations Planning

Master Scheduling and Material Requirements Planning

Capacity Requirements Planning, MRPII, ERP, and DRP

Detailed Scheduling in Management

Linear Programming

Transportation Models

Waiting Line Models

Simulation of Operational Management

Learning Curves of Operational Management

Decision-Making Tools

Sustainability, Performance and Corporate Strategy

Product and Service Design

Process Design and Capacity Management

Customer Relationships and Customer Service

Demand Management, Forecasting, and Aggregate Planning

Material Flow Analysis and Facility Layouts

Supplement. Job Scheduling and Vehicle Routing

Managing Customer and Work Flows

Six Sigma Quality Management

Global Supply Management

Location, Logistics, and Product Returns

Integrating Processes along the Supply Chain

Lean Systems of Operations Management

Independent Demand Inventory Management Systems

Financial Management

Business Production

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