Calculate the 3-sigma xbar-chart and r-chart control limits

Assignment Help Operation Management
Reference no: EM132723474

From a process known to be in control, 6 samples of 3 units each were taken at random intervals and the units in the samples were weighed. The mean (Xbar) and range (R) for each of the six samples are given in the following table.

SAMPLE MEAN Range

1 6.6 0.6
2 7.0 1.0
3 6.5 0.8
4 7.1 1.1
5 7.0 0.5
6 6.8 0.6

a. Calculate the 3-sigma Xbar-chart and R-chart control limits.

b. Calculate the mean (Xbar) and range (R) for the following sample, which was taken from the same process at a later time.

Item Number 1 2 3

Weight 6.9 7.1 7.0

Based on this sample and the control chart limits that you calculated in part (a), is the process in control? Why or why not?

Reference no: EM132723474

Questions Cloud

Dictate the conduct of the members of church : Post your thread about the norms that dictate the conduct of the members of a church. what might be done today to help him compensate or adjust to his losses.
Why is managing inventories so important : Why is managing inventories so important and how can it affect the business?
What is best and first action the hr director should take : Which has been declining. Due to the immediacy of the training request, what is the best and first action the HR director should take?
Calculate denise boutique inventory-on-hand period : Calculate Denise's Boutique's inventory-on-hand period under both LIFO and FIFO. Which method generates the 'better' inventory-on-hand' ratio
Calculate the 3-sigma xbar-chart and r-chart control limits : From a process known to be in control, 6 samples of 3 units each were taken at random intervals and the units in the samples were weighed.
More effectively diagnose this patient problem : What other subjective and objective data may be important for you to gather to more effectively diagnose this patient's problem/s?
Give examples of each of elements of good job performance : Give examples of each of the elements of good job performance and characteristics necessary to achieve good job performance (selection criteria)
Determine the average time a care : The One Stop Market has one pump for gasoline, which can service 10 customers per hour. Cars arrive at the pump at a rate of 5 per hour.
Personal philosophy of teaching in nursing : Personal Philosophy: From your readings about teaching and learning theories, develop and discuss your personal philosophy of teaching in nursing.

Reviews

Write a Review

Operation Management Questions & Answers

  What is the most important concept managing a supply chain

What is the most important concept that you have learned this semester about managing a supply chain. How will/have you be(en) able to put that knowledge to use in your personal/professional life

  Review marketing information on consumer buying behavior

Review Marketing Information on Consumer Buying Behavior. where you will begin your analysis of the specified consumer markets.

  Medical and ergonomic data indicate the body

Medical and ergonomic data indicate the body does not respond well to significant shifts in its natural circadian rhythm of sleep.

  Warehouse location to be adjacent

If Sonny chooses the warehouse location to be adjacent to one of his four existing supermarkets, near which supermarket should he locate in order to minimize cost?

  How does gender and ethnicity play role in hiring decisions

How does gender and ethnicity play a role in hiring decisions? Provide an example of human resources as a support process.

  Describe what the brand promises look like

Describe what the brand promises (the bundle of promises made by the company to the consumer) look like, and how those brand promises impact you.

  Discuss organizational change through appreciative inquiry

Evaluate and discuss organizational change through appreciative inquiry. Include the names and descriptions of the specific phases.

  If one is on the board of healthcare organization

If one is on the board of a healthcare organization, how much information would one wants to receive about its compliance activities?

  Constraints different from managing triple bottom line

How is managing triple constraints different from managing triple bottom line?Describe two quality tools that can be applied to social responsibility initiative

  Aware of its financial difficulties during negotiations

After Precision Products, a publicly traded company, offered Karen Clement-Rowe a position as a project engineer, she accepted, sold her house and with her family moved to Michigan. If the evidence at the trial shows that Precision Products was aware..

  Research business strategies for recruiting in your region

Identify the top three to five (3-5) factors that would need to be considered when recruiting in the country you chose.

  Identify at least three external control mechanisms

Identify at least three external control mechanisms. Discuss the role played by each of these.

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!

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