6. The annual population of Afghanistan is available in the global economy data set.a. Plot the data and comment on its features. Can you observe the effect of the Soviet-Afghan war?b. Fit a linear trend model and compare this to a piecewise linear trend model with knotsat 1980 and 1989.c. Generate forecasts from these two models for the five years after the end of the data,and comment on the results.

Step 1: a. To plot the data and comment on its features, we'll first need to visualize the annual…

Answered: 6. The annual population of Afghanistan…

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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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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