4. The table below gives the sales in millions of dollars for jogging and running shoes in the US for several years. Year sales 1998 1469 1999 1502 2000 1638 b. Predict the amount of sales in the year 2008. 2001 1670 c. Find the average error of your model. 2002 1733 a. Find the best fit quadratic function that gives the sales as a function of the year. 2003 1802 2004 1838

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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4. The table below gives the sales in millions of dollars for jogging and running shoes in the US
for several years.
Year
sales
1998
1469
1999
1502
2000
1638
b. Predict the amount of sales in the year 2008.
c. Find the average error of your model.
2001
1670
a. Find the best fit quadratic function that gives the sales as a function of the year.
2002
1733
2003
1802
g. When will the sales reach 1900?
d. What does your average error tell us about the prediction from part b.
e. According to your model what is the projected maximum amount of sales?
f. In what year will this maximum sales occur, according to the model?
2004
1838
Transcribed Image Text:4. The table below gives the sales in millions of dollars for jogging and running shoes in the US for several years. Year sales 1998 1469 1999 1502 2000 1638 b. Predict the amount of sales in the year 2008. c. Find the average error of your model. 2001 1670 a. Find the best fit quadratic function that gives the sales as a function of the year. 2002 1733 2003 1802 g. When will the sales reach 1900? d. What does your average error tell us about the prediction from part b. e. According to your model what is the projected maximum amount of sales? f. In what year will this maximum sales occur, according to the model? 2004 1838
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