Chapter 19 Flashcards

1
Q

A collection of strategies, techniques, and actions taken by an organization to ensure it is producing a quality product of providing quality service.

A

Statistical Process Control (SPC)

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2
Q

Program named after 3 points +/- the standard deviation that aims to reduce cost of defects and errors and improve process and customer satisfaction

A

Six Sigma

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3
Q

What steps does six sigma take to achieve it’s goal

A
  1. Identify and define problem
  2. Collect and analyze data
  3. make a process improvements
  4. Implement procedure
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4
Q

Variation that is random in nature. Cannot be completely eliminated

A

Chance variation

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5
Q

Variation that is not random, can be eliminated or reduced

A

assignable variation

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6
Q

Two reasons we should be concerned with variation

A
  1. It will change the shape, dispersion, and central location of teh distribution of the product characteristic being measured
  2. Assignable variation is usually correctable.
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7
Q

Techniques associated with Six Sigma

A
  1. Histograms
  2. ANOVA
  3. Chi-squared
  4. regression
  5. correlation
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8
Q

A Diagnostic technique for tallying the number and type of defects that happen within a product or service.

A

Pareto analysis

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9
Q

What are the steps to develope a pareto chart

A
  1. Tally the defects
  2. Rank defects in terms of frequency
  3. produce a bar chart corresponding to frequency
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10
Q

A cause and effect chart that illustrates the relationship between an effect and possible causes

A

Fishbone diagram

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11
Q

Charts that show when assignable variation or changes have entered the process.

A

Control Charts

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12
Q

A control chart that portrays measurements

A

Variable control chart

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13
Q

A control chart that marks a product or service acceptable or unacceptable

A

An attribute control chart

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14
Q

What is the minimum number of samples for a control chart

A

25

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15
Q

A chart that shows and monitors the variation in sample ranges

A

Range chart

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16
Q

When the mean chart and range chart are clustered near the center line withing the UCL and LCL it is said to be

A

in control

17
Q

The appropriate control chart if the item recorded is the proportion of unacceptable parts made in larger batch of parts

A

p-chart

18
Q

a chart that plots the number of defects of failures per unit and is based on the poisson

A

c-bar

19
Q

A sampling plan where a sample of n units is randomly selected from the lots of N units

A

Acceptance testing

20
Q

Four possibilities of acceptance testing

A
  1. Good lot
  2. bad lot
  3. consumer’s risk
  4. Producers risk
21
Q

When a lot contains more defective units then it should but is accepted

A

consumers risk

22
Q

When a lot contains an acceptable amount of defects but is rejected

A

Producers risk

23
Q

Reports the percent defective along teh horizontal axis and the probability of accepting that percent defective

A

operating characteristic curve or OC curve

24
Q
A