User Account

All Pages

Problems, Supply Chain Management

Assignment Help:
1- The smallest defect in a computer chip will render the entire chip worthless. Therefore, tight quality control measures must be established to monitor these chips. In the past, the percentage of defective for these chips has been 3%. The sample size is 100. Calculate the upper and lower control limits of a P-chart to monitor this process. Also determine whether the process is in control if a sample of 100 chips indicated 7 defectives.


2- Cool Technologies produces refrigeration units for food producers and retail food establishments. The overall average temperature that these units maintain is 49 ºF. The average range is 4 ºF. Samples of size 7 are taken to monitor the process. Calculate the control limits for X-bar and R charts. Also determine if the process is in control if the next sample taken results in 47, 48, 50, 52, 51, 57, and 56.


3- An electronic component has design specification limits of 215?25 mhz. Due to variation in the parts that goes into this component, the actual yield varies. A sample of 100 indicated a mean of 220 mhz and standard deviation of 7 mhz.

a- Find the Process Capability Index (Cpk) for this process. Is this process capable? Why?






b- Find the process capability if we adjust the process mean to 217 and reduce variability by 15%. Is this modified process capable? Why?












4- A random sample of 200 cars observed after paint jobs performed by robots indicated a total of 785 blemishes. Find the upper and lower control limits for a C-chart with alpha risk of 6% to monitor the number of blemishes per car. If a car has 10 blemishes, should any action be taken?



















5- - Sampling seven (n=7) pieces of precision-cut parts every hour for the past 14 hours has produced the following results.

Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14
X-bar 3.05 3.02 3.04 3.01 3.07 2.99 2.98 3.05 3.07 3.12 3.11 3.12 3.14 3.15
R 0.31 0.28 0.26 0.37 0.48 0.32 .23 0.37 0.32 0.56 0.71 0.79 0.88 0.92

a- Find the 3-sigma control limits for X-bar and R charts.










b- Draw the X-bar and R-charts and comment on the state of the process.

Related Discussions:- Problems

Warehouse, introduction of materials handling

introduction of materials handling

Explain abc analysis, Question 1 Explain ABC Analysis Question 2 D...

Question 1 Explain ABC Analysis Question 2 Discuss the various methods of disposing the obsolete stock Question 3 What are the steps for binding SKUs and location

Homework, is it possible to help homework

is it possible to help homework

What are supply bills, Question 1 Corporate Banking represents the wide ra...

Question 1 Corporate Banking represents the wide range of banking and financial services provided to domestic and international operations of large local corporates and local oper

What is an eoq model, Probelm 1: What is an EOQ model? Describe explana...

Probelm 1: What is an EOQ model? Describe explanation (basic EOQ model) Explanation of total cost (including formula, order cost, holding cost etc.) Graph showing EOQ mod

Eoq model, #question Tom Rich and Joe Miser have an e-checking/savings acc...

#question Tom Rich and Joe Miser have an e-checking/savings account at the eKU bank. Both Tom and Joe had $5000 in their account at the start of the calendar year 2013. Both have

Global recessions, In 2008, the world economy experienced so-called global ...

In 2008, the world economy experienced so-called global recessions, sharp falls in income and rapid increases in unemployment. a. Briefly summarize the main causes for the globa

Evaluate teleconferencing, The business section of the International Herald...

The business section of the International Herald Tribune carried a story with the headline "Hark! The Herald Angels Sing of Teleconference," (Peter H. Lewis, New York Times Service

Question, Pursuit of one pricing philosophy will often preclude pursuit of ...

Pursuit of one pricing philosophy will often preclude pursuit of another pricing strategy. The statement “Prices should reflect the customer’s willingness-to-pay”, is such an examp

Management benefits, Benefits Outsourcing would eliminate the time ...

Benefits Outsourcing would eliminate the time constraints and the developmental process would take place at a faster pace Boeing can remain abreast of the latest trends

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd