The annual expenditures per residential phone services decreased for the years 2000-2004. The table below shows the annual average expenditures per customer unit. Let x represent the number of years since 2000. a. Use linear regression to fit a line to the data. b. Find the rate at which the amount of expenditures is decreasing each year. c. If the trend continues to decrease at this rate, find the expected amount of expenditures for residential phone services in the year 2013. Year 2000 2002 2004 Avg $ Spent per Residential Phone 629 599 559 2001 609 2003 584
The annual expenditures per residential phone services decreased for the years 2000-2004. The table below shows the annual average expenditures per customer unit. Let x represent the number of years since 2000. a. Use linear regression to fit a line to the data. b. Find the rate at which the amount of expenditures is decreasing each year. c. If the trend continues to decrease at this rate, find the expected amount of expenditures for residential phone services in the year 2013. Year 2000 2002 2004 Avg $ Spent per Residential Phone 629 599 559 2001 609 2003 584
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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