llustration 12.14. Trend equation for yearly sales (in 1000 Rs)for a cómmodity with year 1971 as origin is Y= 81.6+28.8X. Deter-mine the trend equation to give the monthly trend values with Jan.1972 as origin and calculate the trend for March 1972.

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Answered: fllustration 12.14. Trend equation for…

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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34. The following data relate to the number of passenger cars (in million) sold from 2007 to 2014 : Year Number Year Number 5.6 7.9 2007 6.7 2011 5.3 2012 2008 2009 2010 4.3 2013 5.8 6.1 2014 6.1 (a) Fit a straight line trend to the data through 2012 only. (b) Use your result in (a) to estimate production in 2017 and compare with the actual production..
Suppose that you are a researcher and wish to construct a linear mathematical (statistical) model that relates the number of years and the corresponding exports (million U.S.$) of a country. The constructed model may use to forecasts the future values. You have obtained the relevant data for the during of 1990 to 1995 and you have listed the data in Table 5. Table 5. Shows the list of the amount that have earned on exports Year No. 1 2 3 4 5 6 Exports 4954 6131 6904 6813 6803 8137 (a) Construct a suitable graph that explains the relationship between the number of years and the corresponding exports. (b) Construct a mathematical (Statistical) model by using least square method between number of years and the corresponding sales. (c) Interpret the slope of the estimated linear model (d) Forecast the value of exports by using the estimated linear model for the year of 2000
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I have this much done, but need help with E, i,ii,iii Which asks: Choose a year other than the one from part 2c. A birth year or the first year might be a good choice(I picked 1990) .i. Use the trend line equation to estimate the y-value for the year of your choice. Find the relative change in the y-value for your chosen year compared to the last year’s value you found in part 2c iii. Interpret the meaning of your relative change value. F.Should we use the trend line model to estimate the y-value for 2020? Why or why not? Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have helped you solve the first three parts, according to our policy. Please re-post the other parts with complete background information. Step 2 Calculation: As it is required to build a scatterplot with a trendline, we need to use Excel, where this feature is available. The independent or predictor variable is year, which we have denoted as x, and the dependent…
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An industry analyst fits a linear trend model to 2 years of monthly observations measuring the volume of retail sales (in millions of dollars) of passenger cars in the United States. The trend variable equals 1 in January 2017. Below is the equation and some supplementary info Y hat = 20.020 + 0.2093 t Se = 1.061 R2 = .6703 DW = 1.533 Estimate the number of passenger cars that will be sold in January of 2019.

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fllustration 12.14. Trend equation for yearly sales (in 1000 Rs) for a commodity with year 1971 as origin is Y=- 81.6+28.8X. Deter mine the trend equation to give the monthly trend values with Jan 1972 as origin and calculate the trend for March 1972. !!