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

Value Chains, How might the Internet of Things (Iot) and new emerging data-...

How might the Internet of Things (Iot) and new emerging data-analytical tools be used to disintermediate traditional customs brokers, freight consolidators and other 3PLs from your

How to manage a company''s sales force?, Question 1 How to manage a compan...

Question 1 How to manage a company's sales force? Question 2 Explain Gap analysis with SERVQUAL model Question 3 Write a short notes on-              A Elements of Ph

.logistics, why do companies prefere outbound logistics to inbound logistic...

why do companies prefere outbound logistics to inbound logistics

What is just-in-time approach, What is Just-In-Time (JIT) approach? What ar...

What is Just-In-Time (JIT) approach? What are the reasons for adopting JIT in an organization? State the replenishment techniques used by retailers? Just in-time (JIT) JIT (Jus

Errors of measurement in quality of product, Errors of Measurement To e...

Errors of Measurement To ensure the quality of a product, errors of measurement is very important, as test cases are executed at various levels defects if found any in the test

Historic time series - unemployment rates, Using historic time series data ...

Using historic time series data on monthly unemployment rates from January 2001 to April 2011, calculate the following: a) Monthly adjusted seasonal indices using monthly moving

Discuss in detail the reasons for bullwhip effect, Discuss in detail the re...

Discuss in detail the reasons for bullwhip effect? Demand forecasting Lead time  • Batch ordering  • Price fluctuation Inflated orders

HW, Attached

Attached

Flexible manufacturing system, Question A)  A  FMS (Flexible Manufacturing ...

Question A)  A  FMS (Flexible Manufacturing System) is a manufacturing system comprising a set of similar and/or corresponding numerically controlled machines, which are connected

Use probability determine the expected value of sales, Aerial Products main...

Aerial Products maintains a safety stock of 5 airframes in any given week. The owner likes to have the supply as a just in case buffer.  Given the weekly demand in the data table i

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