'Fraction defective' diaporamas de présentation

ENGM 720 - Lecture 11

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Chapter 15

Chapter 15. Lot-by-Lot Acceptance Sampling for Attributes. The Acceptance-Sampling Problem. Acceptance sampling is concerned with inspection and decision making regarding products. Three aspects of sampling.

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Chapter 6 Revised

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Chapter 6

Chapter 6. Homework Problems 6, 8, 10, 21. Problem 6. X-bar Chart. X-bar Chart. X-bar Chart. X-bar Chart. A special cause occurred on the 3 rd and 4 th samples. Therefore, the X-bar chart is not in control. The process mean is unstable and, consequently, not predictable.

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Control chart for fraction defective

Control chart for fraction defective. Used for: Monitoring Rejection rate, Absenteeism, etc. 1. Collect data. number of items inspected n i number of defective items r i Organize into subgroups. Example:. 2. Calculate fraction defective for each subgroup.

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10S

10S. Acceptance Sampling. Learning Objectives. Explain the purpose of acceptance sampling Contrast acceptance sampling and process control Compare and contrast single- and multiple-sampling plans Determine the average outgoing quality of inspected lots. Acceptance Sampling.

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Chapter 10 Supplement

Chapter 10 Supplement. Acceptance Sampling. Available on Student CD-ROM and Online Learning Centre. Sampling Plans. Acceptance sampling : Form of inspection applied to lots or batches of items before or after a process, to judge conformance with predetermined standards

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Attribute Control Chart From

Description:. Characteristic:. 12 4. 3 1. 9 3. 4 1.3. 0 0. 6 2. 6 2. 1 0.3. 8 2.7. 11 3.7. 2 0.7. 10 3.3. 9 3. 3 1. 0 0. 5 1.7. 8 2.7. 16 5.3. 2 0.7. 5 1.7. 6 2. 0 0. 3 1. 2 0.7. 7 2.3. Attribute Control Chart From. P %. np. c. u. Chart #:.

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