CPp and Cpk Assignment

Apr 18th, 2015
RockCafe
Category:
Business & Finance
Price: $10 USD

Question description

You work for Harley-Davidson, manufacturer of popular a motorcycle in the U.S.  You have been assigned to a corporate cross-functional team tasked with finding the best supplier of metal stampings to ensure a quality product.  Your engineering department has provided specifications on a piston ring produced by suppliers, such that the USL = 82.9500 mm and the LSL = 82.8900 mm.  The design center target is 82.9200 mm.

One supplier, Metals Inc., has provided SPC charts of their manufacturing process, and you have determined from studying them that the estimated standard deviation is 0.006 mm, while the process mean is 82.9110 mm.  Another supplier, Rings Inc., also wants to supply the product.  Rings, Inc. representatives have provided detailed process data showing their process capability indexes to be Cp = 1.00 and their Cpk to be 0.50.

Determine the process capability for Metals Inc., i.e., determine Cp and Cpk. Show your computations for full credit.

2 Based on your results in question 1, how can you interpret Cp and Cpk for Metal Inc and for Ring Inc.?

3 How many defective parts per million is each supplier capable of? Given the results of your calculations in 1, 2 and 3, which supplier would you choose for this contract? What request would you have for the selected supplier?


Tutor Answer

(Top Tutor) Daniel C.
(997)
School: Rice University
PREMIUM TUTOR

Studypool has helped 1,244,100 students

3 Reviews


Summary
Quality
Communication
On Time
Value
BlueOcean
Nov 12th, 2016
" Awesome! Exactly what I wanted. "
ashleyisgod
Oct 21st, 2016
" Top quality work from this guy! I'll be back! "
Molly_Moon
Sep 28th, 2016
" AMAZING as always! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1829 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors