Transcription of STATISTICAL METHODS FOR QUALITY CONTROL
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STATISTICAL METHODS FOR. QUALITY CONTROL . CONTENTS. STATISTICS IN PRACTICE: DOW CHEMICAL 1 STATISTICAL PROCESS CONTROL . CONTROL Charts x Chart: Process Mean and Standard Deviation Known x Chart: Process Mean and Standard Deviation Unknown R Chart p Chart np Chart Interpretation of CONTROL Charts 2 ACCEPTANCE SAMPLING. KALI, Inc.: An Example of Acceptance Sampling Computing the Probability of Accepting a Lot Selecting an Acceptance Sampling Plan Multiple Sampling Plans ines bus s an tics for d econom tis ics sta Statistics in Practice DOW CHEMICAL *. FREEPORT, texas . Dow Chemical , texas Operations, began in 1940 In one application involving the operation of a drier, when The Dow Chemical Company purchased 800 acres samples of the output were taken at periodic intervals.
Dow’s Texas Operations produces more than 30% of the world’s magnesium, an extremely lightweight metal used in products ranging from tennis racquets to suitcases to “mag” wheels. The Magnesium De-partment was the first group in Texas Operations to train its technical people and managers in the use of statistical quality control.
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