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Questions-on-Regression-and-Statistical-Quality-Control

1) A researcher demonstrated a correlation of r = 0.60 between teacher attire and student academic performance across 150 grade schools in her state. She concluded that encouraging teachers to be properly attired will increase academic performance. Do you agree or disagree with her conclusion? Why?

2) Does correlation equal causation? Does the strength of correlation depend on the direction? What is the meaning of a zero correlation? Explain your answers.

3)What does a ‘statistically significant’ result mean? How do we know whether a relationship between two variables is caused by something other than mere random chance?

4)What does a small p-value, lower than the level of significance indicate? Explain using specific examples


5) Does the strength of correlation depend on the direction? What is the meaning of a zero correlation? Explain your answers.


6) What is the purpose of using regression analysis? How may it be used to formulate strategies?

7) A private mail delivery service has a policy of guaranteeing delivery by 11:00 A.M. on the morning after a package is picked up. Suppose that the management of the service wishes to check the delivery performance in a particular area over a 2-week time period based on a five-day workweek. The total number of packages delivered daily and the number of packages that were not delivered by 11:00 A.M are shown below:

Day

Packages Delivered

Packages not Arriving before 11:00 A.M.

1

136

4

2

153

6

3

127

2

4

157

7

5

144

5

6

122

5

7

154

6

8

132

3

9

160

8

10

142

7

Based on the above data, can we conclude that the postal delivery process is out of control? [hint: if possible, create control limits and a p-chart for the above data].

 
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Problem-Solving-Critical-Thinking-Paper

When faced with a problem, what do you do to solve it? This assignment asks you to apply a six-step to problem solving process to a specific problem scenario. You will write a paper that presents a synthesis of your ideas about solving the problem using this systematic approach. As Voltaire said, “No problem can withstand the assault of sustained thinking.”

Choose one (1) of the problem scenarios as a topic choice for your paper (Note: Your professor must approve your topic choice before you begin work on the assignment.)

Scenario 1: You have worked at your company for eleven (11) years. You have returned to college to earn a Bachelor’s degree in order to increase your chances for a promotion. You are nearly finished with your degree, when a supervisor’s position in a competing company becomes available in another state. The start date is in two (2) weeks, during your final exam period for your courses. The position offers a $15,000 per year salary increase, a car allowance, and relocation expenses. Your former supervisor works for the company and is recommending you for the position based on your outstanding job performance; if you want the job, it’s yours. All of the other supervisors at this level in the company have Master’s degrees, so you know that you would be expected to earn your Bachelor’s degree and continue on to a Master’s degree. Your present company offers tuition reimbursement, but the new company does not.

Scenario 2: Your child comes home from school with an assignment sheet for a school project. He / she is very excited about the project and begins work immediately, doing research on the Internet and gathering materials. You read over the assignment sheet and notice that your child is not including all of the required items in the project, and you have some ideas for how to improve the quality of the presentation. You recently read an article in a parenting magazine about the importance of a child developing responsibility for his/ her own learning. You recall the many ways in which your parents took over your school projects. You, on the other hand, want to encourage your child’s confidence in his / her ability to complete a project independently. The next day, you are at the grocery store when you see a parent of a student in your child’s class. That parent has spent over $30 in supplies for the science project and is taking a day off of work to put the pieces of the project together.

Scenario 3: You have two jobs—one during the week from 9:00 am to 6:00 pm, and one on Saturday from 3:00 pm to 11:00 pm. You are taking two classes—one that meets from 6:00 to 10:00 pm, and one class online. You have two kids—one who plays soccer, and one who is in band. You have two elderly parents who no longer drive. You have two siblings—one who lives two (2) miles away, and one who lives in another state. You have two (2) papers due in your classes the same week that one (1) of your children has a soccer tournament, and the other child has a band concert. You are coaching the soccer team, and you are in charge of fundraising for the band. You have a goal to complete your degree in two (2) years. Your doctor tells you that your blood pressure, your cholesterol, and your weight are too high and recommends several medications that cost you nearly $200 per month after your insurance co-pay.

Scenario 4: You are a sales representative for a company that encourages staff to log time in the field and away from the office. You are expected to begin and end your day at the office. You notice that each day when you arrive and return another co-worker is already there, and you wonder whether this person spends most of his / her time at the office. At your weekly sales meeting, you are informed of your co-workers’ outstanding sales performance. You suspect that this co-worker is spending more time flattering the boss instead of working leads in the field, and as a result is getting the best client referrals. Your own sales numbers have steadily decreased since this other sales representative was hired.

Scenario 5: Professor’s Choice – problem scenario presented by your professor.

Scenario 6: Student’s Choice – Problem scenario presented by you.

Review the six-step problem solving process outlined in the webtext, based on the article “The Problem Solving Process” located at http://www.gdrc.org/decision/problem-solve.html:

  • Step One: Define the problem
  • Step Two: Analyze the problem
  • Step Three: Generate options
  • Step Four: Evaluate options
  • Step Five: Make your decision
  • Step Six: Implement and reflect

Write a four to five (4-5) page paper in which you:
1. Define the problem in the scenario that you have chosen.
2. Analyze the problem in the scenario.
3. Generate options for solving the problem in the scenario.
4. Evaluate the options for solving the problem.
5. Decide on the best option for solving the problem.
6. Explain how you will implement the decision made and reflect on whether this option was the most effective.

The paper should follow guidelines for clear and organized writing:

  • Include an introductory paragraph and concluding paragraph.
  • Address main ideas in body paragraphs with a topic sentence and supporting sentences.
  • Adhere to standard rules of English grammar, punctuation, mechanics, and spelling.

Your assignment must follow these formatting requirements:

  • Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA Style format. Check with your professor for any additional instructions.
  • Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.

The specific course learning outcomes associated with this assignment are:

  • Recognize the hindrances to the decision-making process in order to apply problem-solving skills to a variety of situations.
  • Create written work utilizing the concepts of critical thinking.
  • Use technology and information resources to research issues in critical thinking skills and informal logic.
 
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Complete-Consumer-Math-Discussion-Post-help

Loans

Congratulations! You are a proud owner of an engraving business. However, you are using an aging rotary engraver to engrave plaques and trophies. The machine has been reliable, but does require regular maintenance and periodic replacement of parts. You have just found out that this engraver will no longer be supported by the manufacturer. This means that service and parts will be hard to get in the future and if it breaks it could take up to three weeks to get a new one up and running. You keep this machine running almost 8 hours a day, every day. Every day that the engraver is down will cost around $975 in lost income.

If you have to buy a new engraver, it would cost around $25,000.

You can get a one-year loan at 12% to buy a new engraver, but you worry that this is a lot of money to spend, especially since the old engraver is still working fine. You have to make a decision.

In this discussion, pose you argument on whether you should purchase a new engraver now or wait until the old engraver breaks before ordering a new engraver?

To help you construct your argument answer the following steps:

  1. The local bank will loan you $25,000 for 1 year at an interest rate of 12% with only one payment due at the end of the year. If you borrow the full $25,000 for the new engraver, what will the total cost of the loan be?
  2. Calculate the total amount of revenue (gross profit) that will be lost if the engraver breaks and is down for 18 business days.
  3. If the engraving business makes $975 per day in revenue and generates a net profit of 25%, how much profit is generated per day?
  4. Given a 25% profit margin and $975 per day in revenue, how many days would it take for the new engraver to earn back the total cost of purchase, if the entire net profit were allocated to pay for the unit?
  5. What other factors should you consider in order to make a good business decision?
 
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Discussion-post

After watching the video please complete the following:

  • What was the dilemma for Denny?
  • What was the dilemma for Susan?
  • Where both of them looking out for the best interests of the company?
  • What would the consequences be for Denny if he went to the media?
  • How would you handle this if you were Denny? Based upon your involvement with this situation, please list the stakeholders you considered when making your decision.
  • What information would you need to make your decision?

Please address these questions and discuss how you would handle this situation if you were Denny and what would be your final decision if the company did not comply with your (Denny’s) ultimatum. Please base your final decision utilizing your current living, current financial situation and the current economic situation. Additionally, please discuss with your classmates the topic of whistle-blowing and how it can impact an organization.

 
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