Statistics for Engineers and Scientists
Statistics for Engineers and Scientists
4th Edition
ISBN: 9780073401331
Author: William Navidi Prof.
Publisher: McGraw-Hill Education
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Chapter 10.5, Problem 1E

The thickness specification for aluminum sheets is 0.246–0.254 mm. Data from an X ¯ chart, based on samples of size 6, that shows that the process is in control, yield values of X ¯ ¯  = 0 .248 and s ¯  = 0 .002 .

  1. a. Compute the value of Cpk for this process.
  2. b. Is the process capability acceptable? Explain.
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The thickness specification for aluminum sheets is 0.246-0.254 mm. Data from an X chart, based on samples of size 6, that shows that the process is in control, yield values of X = 0.248 and 3 = 0.002. Compute the value of Cpk for this process. Is the process capability acceptable? Explain. a.
The specification for the diameters of ball bearings is 15.40–15.60 mm. Data from an X chart, based on samples of size 8, that shows that the process is in control, yield values of X = 15.52 and R = 0.05- Compute the value of Cpk for this process. b. Is the process capability acceptable? Explain. a.
Use Microsoft Excel to answer all the questions The grams of solids removed from a material (y) is thought to be related to the drying time. Ten observations obtained from an experimental study follow: x=(4.3 1.5 1.8 4.9 4.2 4.8 5.8 6.2 7.0 7.9) Y=(2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0) a) Construct a scatter diagram for the data. (b) Fit a simple linear regression model IF

Chapter 10 Solutions

Statistics for Engineers and Scientists

Ch. 10.2 - A process has mean 12 and standard deviation 3....Ch. 10.2 - A process has mean 8 and standard deviation 2. The...Ch. 10.2 - A process is monitored by taking samples at...Ch. 10.2 - Prob. 8ECh. 10.2 - Repeat Exercise 8, using the S chart in place of...Ch. 10.2 - Prob. 10ECh. 10.2 - Repeat Exercise 10, using the S chart in place of...Ch. 10.2 - Copper wires are coated with a thin plastic...Ch. 10.2 - Repeat Exercise 12, using the S chart in place of...Ch. 10.3 - Prob. 1ECh. 10.3 - The target fill weight for a box of cereal is 350...Ch. 10.3 - Prob. 3ECh. 10.3 - Refer to Exercise 3. In the last 50 samples, there...Ch. 10.3 - A newly designed quality-control program for a...Ch. 10.3 - Prob. 6ECh. 10.3 - Prob. 7ECh. 10.3 - Each hour, a 10 m2 section of fabric is inspected...Ch. 10.4 - Refer to Exercise 3 in Section 10.2. a. Delete any...Ch. 10.4 - Refer to Exercise 8 in Section 10.2. a. Delete any...Ch. 10.4 - Prob. 3ECh. 10.4 - Refer to Exercise 12 in Section 10.2.ss a. Delete...Ch. 10.4 - Prob. 5ECh. 10.4 - Prob. 6ECh. 10.5 - The thickness specification for aluminum sheets is...Ch. 10.5 - The specification for the diameters of ball...Ch. 10.5 - Refer to Exercise 2. a. To what value should the...Ch. 10.5 - Refer to Exercise 1. a. To what value should the...Ch. 10.5 - A process has a process capability index of Cp =...Ch. 10 - Prob. 1SECh. 10 - Prob. 2SECh. 10 - Prob. 3SECh. 10 - Prob. 4SECh. 10 - Prob. 5SECh. 10 - Prob. 6SECh. 10 - To set up a p chart to monitor a process that...
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