Elementary Statistics (13th Edition)
Elementary Statistics (13th Edition)
13th Edition
ISBN: 9780134462455
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 14.2, Problem 3BSC

Control Limits In constructing a control chart for the proportions of defective dimes, it is found that the lower control limit is −0.00325. How should that value be adjusted?

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Control Limits In constructing a control chart for the proportions of defective dimes, it is found that the lower control limit is –0.00325. How should that value be adjusted?
Colding Industries has decided to use a p-Chart to monitor the proportion of defective galvanized pipes produced by their production process. The control limits on these charts will be designed to include 95% of the sample proportions when the process is In Control. The quality control manager randomly samples 150 galvanized pipes at 16 successively selected time periods and counts the number of defective galvanized pipes in the sample. 1.What is the Center Line of the control chart? Round to three decimal places. 2.What is the z-value associated with the level of significance stated in the problem? Round to two decimal places. 3.What is the Upper Control Limit? Round to three decimal places. 4.What is the Lower Control Limit? Round to three decimal places. 5.At the next time period, 150 galvanized pipes are sampled and 8 defective galvanized pipes are detected. Is this instance out of control or in control? 6.At the next time period, 150 galvanized pipes are sampled and 15 defective…

Chapter 14 Solutions

Elementary Statistics (13th Edition)

Ch. 14.1 - Quarters. In Exercises 9-12, refer to the...Ch. 14.1 - Prob. 12BSCCh. 14.1 - Prob. 13BBCh. 14.1 - Prob. 14BBCh. 14.2 - Statistical Literacy and Critical Thinking 1....Ch. 14.2 - Prob. 2BSCCh. 14.2 - Control Limits In constructing a control chart for...Ch. 14.2 - Euro Coins After constructing a control chart for...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Prob. 7BSCCh. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Control Charts for p. In Exercises 5-12, use the...Ch. 14.2 - Prob. 13BBCh. 14 - What are process data?Ch. 14 - Prob. 2CQQCh. 14 - Prob. 3CQQCh. 14 - Prob. 4CQQCh. 14 - Prob. 5CQQCh. 14 - Prob. 6CQQCh. 14 - Prob. 7CQQCh. 14 - Prob. 8CQQCh. 14 - Prob. 9CQQCh. 14 - Prob. 10CQQCh. 14 - Prob. 1RECh. 14 - Prob. 2RECh. 14 - Prob. 3RECh. 14 - Energy Consumption. Exercises 15 refer to the...Ch. 14 - Prob. 5RECh. 14 - Prob. 1CRECh. 14 - Prob. 2CRECh. 14 - Prob. 3CRECh. 14 - Internet Doctors: Probability Based on the survey...Ch. 14 - Sunspots and the DJIA Listed below are annual...Ch. 14 - Prob. 6CRECh. 14 - Prob. 7CRECh. 14 - Defective Child Restraint Systems The Tracolyte...Ch. 14 - Prob. 9CRECh. 14 - Does It Pay to Plead Guilty? The accompanying...Ch. 14 - FROM DATA TO DECISION Critical Thinking: Are the...
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