Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card
6th Edition
ISBN: 9781337589383
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 19.2, Problem 6E
To determine
Find the process mean and the process standard deviation for the manufacturing operation.
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The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. a. Determine the proportion of flanges that exceeds 1.02 millimeters.b. What thickness is exceeded by 90% of the flanges? c. Determine the mean and variance of flange thickness.
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 71 miles per hour, with a standard deviation of 3 miles per hour. Estimate the percent of vehicles whose speeds are between 62 miles per hour and 80 miles per hour. Assume the data set has a bell shaped distribution.
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Chapter 19 Solutions
Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card
Ch. 19.2 - 1. A process that is in control has a mean of =...Ch. 19.2 - 2. Twenty-five samples, each of size 5, were...Ch. 19.2 - Prob. 3ECh. 19.2 - Prob. 4ECh. 19.2 - Prob. 5ECh. 19.2 - Prob. 6ECh. 19.2 - Prob. 7ECh. 19.2 - Prob. 8ECh. 19.2 - Prob. 9ECh. 19.3 - 10. For an acceptance sampling plan with n = 25...
Ch. 19.3 - Prob. 11ECh. 19.3 - Prob. 12ECh. 19.3 - 13. Refer to the KALI problem presented in this...Ch. 19.3 - Prob. 14ECh. 19 - Prob. 16SECh. 19 - Prob. 17SECh. 19 - Prob. 18SECh. 19 - The following are quality control data for a...Ch. 19 - The following were collected for the Master Blend...Ch. 19 - An insurance company samples claim forms for...Ch. 19 - Prob. 22SECh. 19 - 23. An n = 10, c = 2 acceptance sampling plan is...Ch. 19 - Prob. 24SE
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.arrow_forwardAn assembly-line machine turns out washers with the following thicknesses (in millimeters). Find the mean and standard deviation of the thicknesses. 1.32 1.71 1.24 1.64 1.86 1.89 1.84 1.72 1.95 1.65 1.57 1.71 1.45 1.77 1.27arrow_forwardA manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than 4 stan deviations from the mean. The quality-control engineer knows that the bolts coming off the assembly line have n length of 14 cm with a standard deviation of 0.05 cm. For what lengths will a bolt be destroyed? Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) OA. A bolt will be destroyed if the length is less than OB. A bolt will be destroyed if the length is less than OC. A bolt will be destroyed if the length is greater than OD. A bolt will be destroyed if the length is between cm and cm or greater than cm. cm. cm. cm.arrow_forward
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