process mean has shifted to 5.2 with a Sigma (standard deviation) of 1.0 minute. compute for Cp and Cpk values: compute for mean, UCL and LCL
process mean has shifted to 5.2 with a Sigma (standard deviation) of 1.0 minute. compute for Cp and Cpk values: compute for mean, UCL and LCL
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 25SGR
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Question
Service at a bank: The Dollars Bank competes on customer service and is concerned about service timeat their drive-by windows. They recently installed new system software which they hope will meet servicespecification limits of 3 -7minutes and have a Capability Index (Cpk) of at least 1.2. They want to also design a control chart for bank teller use. They have done some sampling recently (sample size of 4 customers) and determined that the process mean has shifted to 5.2 with a Sigma (standard deviation) of 1.0 minute.
- compute for Cp and Cpk values:
- compute for mean, UCL and LCL
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