Question 1: Gas expenses and mileage The Human Resources Department of a financial consultancy firm tracks the expenses paid by its employees when they use their personal cars to meet clients to ensure that employees are properly reimbursed. The following data on gas expenses and mileage is collected from 10 employees. Employee Gas expense Miles 1 120 1000 100 800 3 80 650 4 150 1500 130 1300 92 720 7 115 850 8 122 1200 9. 110 900 10 90 700 Instructions: Using the Excel worksheet that contains the same data and is attached below, answer the following questions. You may include your answers on the same worksheet that contains your Excel output. Be sure to be clear with answers to each part. After you are done, you will attach your Excel worksheet here. Questions: a. What linear regression equation best predicts the gas expenses of the employees based on the number of miles driven? b. If an employee drove 2000 miles, what gas expense would she incur? Are there any limitations on this prediction? c. How well does the regression equation fit the data? d. What other variables do you think would be appropriate to add to your model to make it better at predicting the gas expense?
Question 1: Gas expenses and mileage The Human Resources Department of a financial consultancy firm tracks the expenses paid by its employees when they use their personal cars to meet clients to ensure that employees are properly reimbursed. The following data on gas expenses and mileage is collected from 10 employees. Employee Gas expense Miles 1 120 1000 100 800 3 80 650 4 150 1500 130 1300 92 720 7 115 850 8 122 1200 9. 110 900 10 90 700 Instructions: Using the Excel worksheet that contains the same data and is attached below, answer the following questions. You may include your answers on the same worksheet that contains your Excel output. Be sure to be clear with answers to each part. After you are done, you will attach your Excel worksheet here. Questions: a. What linear regression equation best predicts the gas expenses of the employees based on the number of miles driven? b. If an employee drove 2000 miles, what gas expense would she incur? Are there any limitations on this prediction? c. How well does the regression equation fit the data? d. What other variables do you think would be appropriate to add to your model to make it better at predicting the gas expense?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 1: Gas expenses and mileage
The Human Resources Department of a financial consultancy firm tracks the expenses
paid by its employees when they use their personal cars to meet clients to ensure that
employees are properly reimbursed. The following data on gas expenses and mileage is
collected from 10 employees.
Employee
Gas expense
Miles
1
120
1000
100
800
3
80
650
4
150
1500
5
130
1300
92
720
7
115
850
8
122
1200
9
110
900
10
90
700
Instructions:
Using the Excel worksheet that contains the same data and is attached below, answer
the following questions. You may include your answers on the same worksheet that
contains your Excel output. Be sure to be clear with answers to each part. After you are
done, you will attach your Excel worksheet here.
Questions:
a. What linear regression equation best predicts the gas expenses of the employees
based on the number of miles driven?
b. If an employee drove 2000 miles, what gas expense would she incur? Are there
any limitations on this prediction?
c. How well does the regression equation fit the data?
d. What other variables do you think would be appropriate to add to your model to
make it better at predicting the gas expense?
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