Microprocessing, a computer firm specializing in software engineering, has compiled the following revenue records for the years 1989 to 1995 Year 1989 1990 1991 Revenue (× $100,000) 1.1 1.5 1.9 1992 2.1 1993 1994 2.4 2.9 The second-degree equation that best describes the secular trend for these data is 1995 3.5 {=2.119 + 0.375x + 0.020x?, where 1992 = 0, and x units = 1 year (a) Calculate the percent of trend for these data. (b) Calculate the relative cyclical residual for these data. (c) Plot the percent of trend from part (a). (d) In which year does the largest fluctuation from trend occur, and is it the same for bl methods?
Microprocessing, a computer firm specializing in software engineering, has compiled the following revenue records for the years 1989 to 1995 Year 1989 1990 1991 Revenue (× $100,000) 1.1 1.5 1.9 1992 2.1 1993 1994 2.4 2.9 The second-degree equation that best describes the secular trend for these data is 1995 3.5 {=2.119 + 0.375x + 0.020x?, where 1992 = 0, and x units = 1 year (a) Calculate the percent of trend for these data. (b) Calculate the relative cyclical residual for these data. (c) Plot the percent of trend from part (a). (d) In which year does the largest fluctuation from trend occur, and is it the same for bl methods?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Microprocessing, a computer firm specializing in software engineering, has compiled the
following revenue records for the years 1989 to 1995
Year
1989
1990
1991
Revenue (× $100,000)
1.1
1.5
1.9
1992
2.1
1993
1994
2.4
2.9
The second-degree equation that best describes the secular trend for these data is
1995
3.5
{=2.119 + 0.375x + 0.020x?, where 1992 = 0, and x units = 1 year
(a) Calculate the percent of trend for these data.
(b) Calculate the relative cyclical residual for these data.
(c) Plot the percent of trend from part (a).
(d) In which year does the largest fluctuation from trend occur, and is it the same for bl
methods?
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