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

Beoing, developing a brief synopsis outlining the business and capitalisati...

developing a brief synopsis outlining the business and capitalisation strategies of Boeing and Airbus

Avoid delays in dispatch of products?, avoid delays in dispatch of products...

avoid delays in dispatch of products?

Describe the two trade-offs in transportation design, Question 1: Descr...

Question 1: Describe with an example, the final step for achieving strategic fit Explanation of strategic fit Question 2: Describe the two trade-offs in transportatio

Supplier certification, S upplier certification A certified supplier i...

S upplier certification A certified supplier is one whose quality data record shows that it does not need to perform routine inspection and test on each lot or batch received.

What are the strategies for offshore outsourcing, Question 1: What are ...

Question 1: What are the main barriers of outsourcing? Outsourcing of critical operations Negative customer reaction Employee resistance Lack of effective proje

LEAN THINKING, #questionCOURSE: LEAN THINKING Read the journal article Spe...

#questionCOURSE: LEAN THINKING Read the journal article Spear, S., & Bowen, H. K. (1999) ‘Decoding the DNA of the Toyota Production System’, Harvard Business Review, 77 (5), p

The 3c model by kenichi ohmae, The 3C model by Kenichi Ohmae The 3C mod...

The 3C model by Kenichi Ohmae The 3C model has been given by well known business strategist of Japanese origin, Kenichi Ohmae. The 3 C's of the model stands for: The

Assignment, assignment based on drivers

assignment based on drivers

Fresh produce supply chain, The Fresh Produce Supply Chain Fresh produ...

The Fresh Produce Supply Chain Fresh produce was grown in many locations worldwide. However, certain areas proved more economically viable than others for large-scale producti

What is supply chain management, What is Supply Chain Management? Analyse t...

What is Supply Chain Management? Analyse the key issues of Supply Chain Management Supply Chain Management - meaning - Key issues in supply chain management a. Configuratio

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