Where the wine was produced

Assignment Help Mathematics
Reference no: EM131055922

Reconsider the wine quality data in Table E3.4. The "Region" predictor refers to three distinct geographical regions where the wine was produced. Note that this is a categorical variable.

a. Fit the model using the "Region" variable as it is given in Table E3.4. What potential difficulties could be introduced by including this variable in the regression model using the three levels shown in Table E3.4?

b. An alternative way to include the categorical variable "Region" would be to introduce two indicator variables x1 and x2 as follows:

Region

X1

X2

1

0

0

2

1

0

3

0

1

Why is this approach better than just using the codes 1, 2, and 3?

TABLE E3.4 - Wine Quality Datau (Found in Minitab)

Clarity,

Aroma,

Body,

Flavor,

Oakiness.

Quality.

 

X1

X2

X3

x4

X5

y

Region

1

3.3

2.8

3.1

4.1

9.8

1

1

4.4

4.9

3.5

3.9

12.6

1

1

3.9

5.3

4.8

4.7

11.9

1

1

3.9

2.6

3.1

3.6

11.1

1

1

5.6

5.1

5.5

5.1

13.3

1

1

4.6

4.7

5

4.1

12.8

1

1

4.8

4.8

4.8

3.3

12.8

1

1

5.3

4.5

4.3

5.2

12

1

1

4.3

4.3

3.9

2.9

13.6

3

1

4.3

3.9

4.7

3.9

13.9

1

1

5.1

4.3

4.5

3.6

14.4

3

0.5

3.3

5.4

4.3

3.6

12.3

2

0.8

5.9

5.7

7

4.1

16.1

3

0.7

7.7

6.6

6.7

3.7

16.1

3

1

7.1

4.4

5.8

4.1

15.5

3

0.9

5.5

5.6

5.6

4.4

15.5

3

1

6.3

5.4

4.8

4.6

13.8

3

1

5

5.5

5.5

4.1

13.8

3

1

4.6

4.1

4.3

3.1

11.3

1

0.9

3.4

5

3.4

3.4

7.9

2

0.9

6.4

5.4

6.6

4.8

15.1

3

1

5.5

5.3

5.3

3.8

13.5

3

0.7

4.7

4.1

5

3.7

10.8

2

0.7

4.1

4

4.1

4

9.5

2

1

6

5.4

5.7

4.7

12.7

3

1

4.3

4.6

4.7

4.9

11.6

2

1

3.9

4

5.1

5.1

11.7

1

1

5.1

4.9

5

5.1

11.9

2

1

3.9

4.4

5

4.4

10.8

2

1

4.5

3.7

2.9

3.9

8.5

2

1

5.2

4.3

5

6

10.7

2

0.8

4.2

3.8

3

4.7

9.1

1

1

3.3

3.5

4.3

4.5

12.1

1

1

6.8

5

6

5.2

14.9

3

0.8

5

5.7

5.5

4.8

13.5

1

0.8

3.5

4.7

4.2

3.3

12.2

1

0.8

4.3

5.5

3.5

5.8

10.3

1

0.8

5.2

4.8

5.7

3.5

13.2

1

Reference no: EM131055922

Questions Cloud

What is affirmative action as a social policy : What are the basic arguments for Affirmative Action and what are those against it? Which side do you find the most convincing and why?
Respiration in animals : What are the products obtained during respiration in animals?
Discuss nuer kindship and marriage : Discuss Nuer kindship and marriage and its implication for how we think of kinship. What beliefs, practices, and relationship formed the ties between fathers and their wives and children in the 1930s?
What can ludmilla do to increase the success of expats : What can Ludmilla do to increase the success of expats?
Where the wine was produced : Reconsider the wine quality data in Table E3.4. The "Region" predictor refers to three distinct geographical regions where the wine was produced. Note that this is a categorical variable
Do they want a challenge or more interesting work : What will get them feeling good about their job? Is it more money - or is that just a short-term fix that will not deal with the real problem? Do they want power?
Function of the pores in animals : How does water move inside sponges? What is the function of the pores in these animals?
Develop and ability to clarify and strengthen your own ideas : I will meet you one-on-one after1st draft of Introduction (5 points) and 2nd draft of the whole paper (10 points), discussing your progress as an academic writer, providing more detailed feedback on the Essay.
Question regarding the primarily snowy : Confused, can someone point me in the right direction? Rabbits with brown fur migrate to an area that is primarily snowy. Explain how all the rabbits eventually come to have white fur.

Reviews

Write a Review

Mathematics Questions & Answers

  Questions on ferris wheel

Prepare a Flexible Budget Gator Divers is a company that provides diving services such as underwater ship repairs to clients in the Tampa Bay area.

  Logistic map

This assignment has two question related to maths. Questions are related to bifurcation cascade and logistic map.

  Finding the probability of cards

This assignment has questions related to probabiltiy.

  Systems of ode

Find all the xed points, and study their stability and Draw the phase portrait of the system, as well as the graphs of the solutions in all relevant cases.

  Derive the boolean expression

Derive the Boolean Expression and construct the switching circuit for the truth table stated

  System of equations

Evaluate which equations are under-identified, just-identified, and over-identified.

  Linear programming problem

Linear programming problem consisting of only two constraints with one objective function.

  Find the natural domain

Find the natural domain of the given functions.

  Introduction to numerical methods

Compute the coecients of the polynomials using the term recurrence relation.

  Chart of the topological manifold

De?nition of smoothness of functions on a smooth manifold is chart independent and hence geometric.

  Mathematics in computing

Questions related on mathematics in computing.

  Complex problems

Complex problems

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