The following data give the starting salary for students who recently

The following data give the starting salary for students who recentl

The following data give the starting salary for students who recently graduated from a local university and accepted jobs soon after graduation. The starting salary, grade-point average (GPA), and major (business or other) are provided.

Salary

$29,500

$46,000

$39,800

$36,500

$42,000

$31,500

$36,200

GPA

3.1

3.5

3.8

2.9

3.4

2.1

2.5

Major

Other

Business

Business

Other

Business

Other

Business

(a)    Using a computer, develop a regression model that could be used to predict starting salary based on GPA and major.

(b)   Use this model to predict the starting salary for a business major with a GPA of 3.0.

(c)    What does the model say about the starting salary for a business major compared to a nonbusiness major?

(d)   Do you believe this model is useful in predicting the starting salary? Justify your answer, using information provided in the computer output.

           

Problem 4.20 (regression)

   

*millions

*100,000s

 
           

Bus and subway ridership in Washington, DC, during the summer months is believed to be heavily tied to the number of tourists visiting the city. During the past twelve years, the following data have been obtained.

 

Year

Tourist

Ridership

 
 

1

7

15

 
 

2

2

10

 
 

3

6

13

 
 

4

4

15

 
 

5

14

25

 
 

6

15

27

 
 

7

16

24

 
 

8

12

20

 
 

9

14

27

 
 

10

20

44

 
 

11

15

34

 
 

12

7

17

 

(a)      Plot the data and determine if a linear model is reasonable.                                       

(b)      Develop a regression model.                                                   

(c)       What is the expected ridership if 10m people visit the city?                       

(d)      If there are no tourists at all, explain the predicted ridership?  

(e)      Use excel to develop a regression model for the data in Problem 4.20. Explain what excel output indicates about the usefulness of this model.

Calculate the price of your order

Select your paper details and see how much our professional writing services will cost.

We`ll send you the first draft for approval by at
Price: $36
  • Freebies
  • Format
  • Formatting (MLA, APA, Chicago, custom, etc.)
  • Title page & bibliography
  • 24/7 customer support
  • Amendments to your paper when they are needed
  • Chat with your writer
  • 275 word/double-spaced page
  • 12 point Arial/Times New Roman
  • Double, single, and custom spacing
  • We care about originality

    Our custom human-written papers from top essay writers are always free from plagiarism.

  • We protect your privacy

    Your data and payment info stay secured every time you get our help from an essay writer.

  • You control your money

    Your money is safe with us. If your plans change, you can get it sent back to your card.

How it works

  1. 1
    You give us the details
    Complete a brief order form to tell us what kind of paper you need.
  2. 2
    We find you a top writer
    One of the best experts in your discipline starts working on your essay.
  3. 3
    You get the paper done
    Enjoy writing that meets your demands and high academic standards!

Samples from our advanced writers

Check out some essay pieces from our best essay writers before your place an order. They will help you better understand what our service can do for you.

Get your own paper from top experts

Order now

Perks of our essay writing service

We offer more than just hand-crafted papers customized for you. Here are more of our greatest perks.

  • Swift delivery
    Our writing service can deliver your short and urgent papers in just 4 hours!
  • Professional touch
    We find you a pro writer who knows all the ins and outs of your subject.
  • Easy order placing/tracking
    Create a new order and check on its progress at any time in your dashboard.
  • Help with any kind of paper
    Need a PhD thesis, research project, or a two-page essay? For you, we can do it all.
  • Experts in 80+ subjects
    Our pro writers can help you with anything, from nursing to business studies.
  • Calculations and code
    We also do math, write code, and solve problems in 30+ STEM disciplines.

Frequently asked questions

Get instant answers to the questions that students ask most often.

See full FAQ
    See full FAQ

    Take your studies to the next level with our experienced specialists

    Chat
    Chat
    Hello, we are online 24/7. Leave a message we will reply instantly