Statistical Quality Control

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Statistical Quality Control
Assignment: Please read the material (Fundamentals of Quality Control and Improvement) and use the book to answers all questions as followed.
Note: Chapter  of Fundamentals of Quality Control and Improvement.

Question 1:
A local hospital estimates that the number of patients admitted daily to the emergency room has a Poisson probability distribution with a mean of 4.0. What is the probability that on a given day
a) only 3 patients will be admitted?
b) at most 8 patients will be admitted?
c) no one will be admitted?
d) For each patient admitted, the expected daily operational expenses to the hospital are $600. If the hospital wants to be 94.1% sure of meeting daily expenses, how much money should it retain for operational expenses daily?

Question 2:
The specifications for the thickness of nonferrous washers are 1.0 +/- 0.04 mm. From the process data, the distribution of the washer thickness is estimated to be normal with a mean of 0.97 mm and a standard deviation of 0.02 mm. The unit cost of rework is $0.10, and the unit cost of scrap is $0.15. For a daily production of 10,000 items:
a) What proportion of the washers is conforming? What is the total daily cost of rework and scrap?
b) In its study of constant improvement, the manufacturer changes the mean setting of the machine to 1.0 mm. If the standard deviation is the same as before, what is the total daily cost of rework and scrap?
c) The manufacturer is trying to further improve on the process and reduces its standard deviation to 0.015 mm. If
the process mean is maintained at 1.0 mm, what is the percent decrease in the total daily cost of rework and scrap compared to that of part (a)?

Question 3:
The time to repair an equipment is known to be exponentially distributed with a mean of 45min.
(a) What is the probability of the machine being repaired within half an hour?
(b) If the machine breaks down at 3P.M. and a repairman is available immediately, what is the probability of the machine being available for production by the start of the next day? Assume that the repairman is available until 5P.M.
(c) If there are two machines being repaired, what is the probability that both machines will not be available within the next 50 minutes?

Question 4 (Chapter 4, exercise 4-4):
Explain the difference between accuracy and precision of measurements. How do you control for accuracy? What can you do about precision?

Question 5 (Chapter 4, exercise 4-11):
Consider the price of homes in a large metropolitan area. What kind of distribution would you expect in terms of skewness and kurtosis? As an index, would the mean or median price be representative? What would the interquartile range indicate?

Research paper on discussion topics

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Discussion topics include:

  1. Defining Global Leadership
  2. Key traits for leaders
  3. Knowledge Creation and Transfer
  4. Culture and leaders

Assignments for Week 2 include:

  1. Read: Chapter 8 Mendenhall et al.
  2. Discussion Post 1

Lecture Notes:

To create knowledge, it may take an international assignment (expatriates) and the sharing of personal experiences. The assignment can be assigned from the organization to allow the right person to be stationed overseas for a certain amount of time. The sharing of the knowledge also known as the transfer knowledge, obliges the firm to create opportunities for the person to share personal experiences through a formal sharing tool. The organization must provide this individual to use what they have learned from this experience.

Steps to turn to Knowledge:

  1. Socialization-joining a group
  2. Articulation- Conversations in a team
  3. Combination- Creating or using existing concepts/ideas
  4. Internationalization- learning by doing

Week Two Discussion Questions (due by Thursday)

Note: Please type the question and then the answer which should be about 250 words for each question.

As we explore the need for knowledge building, severalimpending challenges emerge. Considering your readings and experiences, as a leader think about the following:

Discussion Question:

1.What may possibly become challenges to knowledge building and sharing?

2.How can these be overcome?

Does a shortage imply that the price of the item is above or below the equilibrium price? Please give an explanation.

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2. (5 points) Current, or at least in the very recent past, we have had shortages of items like toilet paper and disinfecting wipes and hand sanitizer.

(a) Does a shortage imply that the price of the item is above or below the equilibrium price? Please give an explanation.

(b) What happened to demand or supply that led to the shortage? Please explain.

3. (5 points) Consider a market characterized by the following inverse demand and supply functions: PX = 10 − 2QX and PX = 2 2QX.

(a) Calculate the equilibrium price and equilibrium quantity. Please show your calculations.

(b) Calculate the consumer surplus and show your calculations.

(c) Calculate the producer surplus and show your calculations.

It might help if after you have computer the answer for (a), you draw a graph, with the demand and the supply curves, and then label the y-intercept of the demand curve, the y-intercept of the supply curve and the equilibrium price and quantity, and then calculate the consumer and producer surplus.

4. (5 points) Rapel valley in Chile is renowned for its ability to produce high quality wine at a fraction of the cost of many other vineyards around the world. Rapel Valley produces over 20 million bottles of wine annually, of which 5 million are exported to the United States.. Each bottle entering the United States is subject to a $0.50 per bottle excise tax, which generates about $2.5 million in tax revenues. Strong weather patterns have caused unusually cold temperatures in the grape growing region in Chile, hurting the grape crop from which the wine is produced.

(a) How do the low temperatures affect the price of Chilean wine? Please explain.

(b) Assuming that the weather does not affect California’s grape (and wine) producing region, how will the cold weather in Chile impact the market for California wine? You may assume that Chilean Wine and California wine are substitutes for each other. Please give an explanation.

the impact of gender and physical attractiveness on employability

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Double spaced, 11-point Arial font. Size 12 font.
You will need to conduct a Psychology research report focusing on the question: The impact of gender and physical attractiveness on employability.

The report must meet these guidelines greatly below to achieve a high grade. I am looking for a 2:1 grade and if this is met to a high standard I will write an outstanding view for yourself! I will be a returning customer if my coursework is written well, understandable and precise.

Title:
Concise and informative. The title should reflect the main objectives and design of the study

Abstract:
Structured abstract summarising the study with the following subheadings: background; aims; sample; method; results; and conclusions.

Introduction:
Concise review of relevant psychological literature that leads to a clear rationale for the study. The aims and hypotheses should be clearly stated and derived logically from the literature reviewed. (great detail with previous literature please)

Method:
Clearly described method section using appropriate subheadings. i. Clear description of design ii. Details of participants/sampling iii. Details of equipment/materials/tests iv. Procedure and instructions v. Ethical issues and how they were addressed.
Prior to completing the questionnaire, each participant should read a participant information sheet. They should also be given a debriefing sheet.

Results:
i. Statement of findings and relevance to hypotheses ii. Presentation of data in tables and/or figures iii. Appropriate application of analytical techniques.

Discussion:
i. Explanation of findings ii. Relationship to background research iii. Limitations and modifications iv. Implications and suggestions for further research.

References
All cited and in APA format! THIS IS ESSENTIAL!

Report style (Communication)
Adheres to APA/BPS publication conventions for report sections. Grammatically correct prose with use of appropriate tense and active voice contributes to the report’s cohesion and clarity. Originality and scientific quality.

Word count needs to be included at the end of the essay please.

Lecturers notes: Ideally, you should also examine the assumptions behind the analysis you perform. Don’t get too bogged down with this though. Remember that the Kolmogorov-Smirnov test is sensitive to minor departures from normality with larger sample sizes. In other words, it will suggest that data aren’t normal when they probably are. This is likely to reflect a Type I error rather than a genuine departure from normality. Consequently, you may also wish to look at the skew and kurtosis coefficients when deciding whether your dependent variable(s) is/are normally distributed. You may also wish to visually inspect for normality and examine whether the means, medians and modes are similar.

(JUST SO YOU UNDERSTAND WHAT THE REPORT IS ABOUT A LITTLE BETTER)
Print TWO COPIES of EACH questionnaire so that you have EIGHT in total. Please give EACH version of the questionnaire to ONE MALE and ONE FEMALE participant so that you collect data from EIGHT participants in total. For clarity, one male and one female participant should complete: the questionnaire featuring the more physically attractive male image; one male and one female should complete the questionnaire featuring the more physically attractive female image; one male and one female should complete the questionnaire featuring the less physically attractive male image; and one male and one female should complete the questionnaire featuring the less physically attractive female image.

* Data were collected from 2304 participants. This was reduced to 2264 after removing data from participants that had impossible values (i.e., those exceeding the actual range of scores) and those who had clearly completed more than one version of the questionnaire. They were then stratified according to condition (i.e., physical attractiveness and image gender) and a sample of 568 was taken from this.

The uploaded files should help you with understanding how it should be set out and what is needed.

Thankyou!