Regression | Statistics homework help


Data: Production costs of custom metal blanks that are used for computer aided machining.  A 3D printed design is sent to the manufacturer which is used to arrive at a cost/unit and that estimate is used for pricing decisions.   We are going to help the manufacturer by helping him analyze some factors influencing the cost of custom blanks production.  Show all the supporting output.  I prefer you use JMP Pro for the assignment.

N: 195 observations from a manufacturer.  

FILENAME/Dataset: mgfproduction_assignment Download mgfproduction_assignment 

Instructions:  Load the file into Jmp.  Make sure you note that N=195 observations.  There should 12 columns.    Make sure that the specification of only 3 variables Detail, Rush, Plant is set as “categorical”. You should see a red histogram for these variables.  All other variables should be continuous-blue triangle.   For this part of the assignment, focus only on 2 variables:  cost/unit (Average cost/unit) and material cost/unit (materials are just one part of any manufacturer’s production cost).

  1. (15 points) Analyze the 2 variables- $Average cost/unit and $Material cost/unit :
    1. Visualize the relation: scatter plots (5)
    2. Visualize and analyze distributions of each of the variables. (5)
    3. Document the simple correlation coefficient and the mnemonics (mean and standard deviation) of Average cost/unit and Material cost per unit. (5)  (Note, if you click the Distribution icon (green parallel bars on the tool menu next to Fit y by x).

This is best practice for any data and should be the first step of analysis.

  1. (85) Fit the simple linear regression model Y=Average cost/unit on X= Material cost/unit.   E(Y=Average cos/unit |material cost/unit)
    1. What portion of Y does the material cost explain? Is this significant?  (10)
    2. What is the 95% confidence interval for the coefficient of material costs? (10). Explain.
    3. What about the 99% confidence interval? When confidence level is increased to 99% does the parameter estimate lie in the 99% confidence interval? (10)
    4. Is this regression significant- what is the global fit of this regression? (10)
    5. What is the prediction equation for this regression? (10).  What does this say?  Explain.
    6. Predict the change in $average cost/unit (Y) when material cost/unit is $2/unit versus $1.60/unit.  (10)
    7. Can you give the confidence interval for E(Y=Average cost/unit) when material cost =$1.60? (95% confidence interval). (12.5)
    8. Can you give the prediction interval for Y hat when material cost =$1.60? (95% confidence interval). (12.5)
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

We value our clients. For this reason, we ensure that each paper is written carefully as per the instructions provided by the client. Our editing team also checks all the papers to ensure that they have been completed as per the expectations.

Professional Academic Writers

Over the years, our Acme Homework has managed to secure the most qualified, reliable and experienced team of writers. The company has also ensured continued training and development of the team members to ensure that it keep up with the rising Academic Trends.

Affordable Prices

Our prices are fairly priced in such a way that ensures affordability. Additionally, you can get a free price quotation by clicking on the "Place Order" button.

On-Time delivery

We pay strict attention on deadlines. For this reason, we ensure that all papers are submitted earlier, even before the deadline indicated by the customer. For this reason, the client can go through the work and review everything.

100% Originality

At Essay USA, all papers are plagiarism-free as they are written from scratch. We have taken strict measures to ensure that there is no similarity on all papers and that citations are included as per the standards set.

Customer Support 24/7

Our support team is readily available to provide any guidance/help on our platform at any time of the day/night. Feel free to contact us via the Chat window or support email:

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Essay USA has stood as the world’s leading custom essay writing services providers. Once you enter all the details in the order form under the place order button, the rest is up to us.


Essay Writing Services

At Essay USA, we prioritize on all aspects that bring about a good grade such as impeccable grammar, proper structure, zero-plagiarism and conformance to guidelines. Our experienced team of writers will help you completed your essays and other assignments.


Admission and Business Papers

Be assured that you’ll definitely get accepted to the Master’s level program at any university once you enter all the details in the order form. We won’t leave you here; we will also help you secure a good position in your aspired workplace by creating an outstanding resume or portfolio once you place an order.


Editing and Proofreading

Our skilled editing and writing team will help you restructure you paper, paraphrase, correct grammar and replace plagiarized sections on your paper just on time. The service is geared toward eliminating any mistakes and rather enhancing better quality.


Technical papers

We have writers in almost all fields including the most technical fields. You don’t have to worry about the complexity of your paper. Simply enter as much details as possible in the place order section.