Your Perfect Assignment is Just a Click Away

Starting at $8.00 per Page

100% Original, Plagiarism Free, Customized to Your instructions!

glass
pen
clip
papers
heaphones

Dominican University Concrete Train Dataset Regression Model Analysis

Dominican University Concrete Train Dataset Regression Model Analysis

Question Description

objective: You have to show that you are able to use linear regression techniques and interpret the results that you obtain, such as coefficient estimates, r-squared, adjusted r-squared, ANOVA table, p-value, standard error, etc.

Please use the “concrete_train” dataset to fit a regression model. Make sure that you:

  • Interpret your findings (coefficient estimates, r-squared, adjusted r-squared, ANOVA table, p-value, standard error, etc.)
  • Perform variable selection (backward)
  • Make model comparison using the proper metric (it might be r-squared or adjusted r-squared but justify why you use one over the other)
  • Check the correlation matrix (and comment on it)
  • Run regression diagnostic (to see any transformation is needed or any assumption is violated)

After deciding on the best model (it may vary from person to person), use that regression model to predict the strength of the concrete in “concrete_test” dataset. Then, please upload the predictions to the canvas so that I can evaluate how good the predictions are.

Data source

The data, collected by Yeh, consists of 1030 observations with 9 quantitative variables: cement, age, blast furnace slag, fly ash, water, superplasticizer, coarse aggregate, fine aggregate, and compressive strength. The description of each of these variables is given in Table 1. Note that I split the data into two parts – train set (803 observations) and test set (200 observations). Therefore, you are going to work with the training dataset to create a regression model and use it to predict the strength of the concretes in the “concrete_test” data.

Table 2. Definition of variables

Variable name

Definition

Cement

ASTM type I, Portland Cement

Slag

Supplied by a local steel plant in Taiwan

Fly Ash

Manufactured as a byproduct by a power plant

Water

Normal Tap water

Superplasticizer

ASTM C494 type G, to obtain slump between 125mm to 175 mm.

Coarse Aggregate

Crushed natural rock with a 10-mm maximum size.

Fine Aggregate

Washed, natural river sand with a fineness module of 3.0.

Age

Number of Days

Compressive strength

Experimental results of destructive testing on 15-cm cylinders

Good luck


"Place your order now for a similar assignment and have exceptional work written by our team of experts, guaranteeing you A results."

Order Solution Now

Our Service Charter


1. Professional & Expert Writers: Eminence Papers only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Eminence Papers are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Eminence Papers are known for the timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Eminence Papers, we have put in place a team of experts who answer all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.