# 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
• Amendments to your paper when they are needed
• 275 word/double-spaced page
• 12 point Arial/Times New Roman
• Double, single, and custom spacing

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

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

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

## 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.

## 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