Using the following time series data of U.S. new car sales ($ millions), respond to the following items. (The data is sourced from https://www.census.gov/retail/index.html#mrts. Find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for U.S. new car sales.). Year $ Sales (Millions) 2009 486,565 2010 549,473 2011 608,788 2012 672,550 2013 735,374 2014 785,142 2015 842,122 2016 877,743 2017 911,157 2018 943,538
Using the following time series data of U.S. new car sales ($ millions), respond to the following items. (The data is sourced from https://www.census.gov/retail/index.html#mrts. Find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for U.S. new car sales.). Year $ Sales (Millions) 2009 486,565 2010 549,473 2011 608,788 2012 672,550 2013 735,374 2014 785,142 2015 842,122 2016 877,743 2017 911,157 2018 943,538
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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Using the following time series data of U.S. new car sales ($ millions), respond to the following items. (The data is sourced from https://www.census.gov/retail/index.html#mrts. Find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for U.S. new car sales.).
| Year | $ Sales (Millions) |
| 2009 | 486,565 |
| 2010 | 549,473 |
| 2011 | 608,788 |
| 2012 | 672,550 |
| 2013 | 735,374 |
| 2014 | 785,142 |
| 2015 | 842,122 |
| 2016 | 877,743 |
| 2017 | 911,157 |
| 2018 | 943,538 |
b. Test for autocorrelation using the 0.05 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.)
| Year | $ Sales (Millions) | Predicted | Residuals | Lagged Residuals | Squared Difference | Squared Residuals |
| 2009 | 486,565 | |||||
| 2010 | 549,473 | |||||
| 2011 | 608,788 | |||||
| 2012 | 672,550 | |||||
| 2013 | 735,374 | |||||
| 2014 | 785,142 | |||||
| 2015 | 842,122 | |||||
| 2016 | 877,743 | |||||
| 2017 | 911,157 | |||||
| 2018 | 943,538 | |||||
| Sums= |
c-1. What is d-test statistic value? (Round your answer to 4 decimal places.)
c-2. What is the result of hypothesis?
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