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

Process flow diagrams identify the push-pull interface, The Pampered Puss ...

The Pampered Puss is a company with headquarters in Melbourne, Australia and operates 35 retail shops. These shops are spread throughout the metropolitan area and were established

Carrier selection, List factors that typically influence carrier selection...

List factors that typically influence carrier selection and briefly describe how each one influence the selection

Annual Inventory Costs, Harley Davidson purchases components from three sup...

Harley Davidson purchases components from three suppliers. Components purchased from Supplier A are priced at $ 5 each and used at the rate of 240,000 units per year. Components pu

Discuss the three components of dss, Question 1 Describe the important inv...

Question 1 Describe the important inventory management techniques that are used in business Question 2 Discuss the seven steps that comprise a process to develop and deploy s

Analyse the stages of the procurement cycle, Problem 1: What do you mea...

Problem 1: What do you meant by the ‘Purchasing Function'? Describe some benefits accrued to a firm having an effective purchasing function? Problem 2: Purchasing Depar

Service output demand, describe three buying situations and the Service Out...

describe three buying situations and the Service Output Demand of the buyer in each one.

Inspection - planning, Inspection - Planning, Accuracy and Necessity Th...

Inspection - Planning, Accuracy and Necessity The inspection and the test plans should identify the product which is to be tested and inspected. It should clearly define the re

Managing commercial relationship for the small-scale company, Question: ...

Question: What are the challenges that suppliers face when managing commercial relationship for the small-scale company? Check customers capable of adding value Check cus

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

Mrp systems., mrp

mrp

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