-a· A. I;(1.1)a. A.I-7.I; Task 1 (The epidemic model)Introduce a new unknown D ('dead people') in model (1.1) (script) and derive a reasonable extensionof the model. If possible, try to analyse your result in terms of nondimensionalization, steady states,existence of solutions, long-time behaviour of solutions...

Infectious agents have had decisive influences on the history of mankind.Fourteenth century Black…

Answered: (The epidemic model) Introduce a new…

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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6. Suppose we estimate a linear regression equation Y; = Bo + B1X; + u; by OLS. (a) Show thatE ûi 0, where the û;'s are the regression residuals. i3D1 (b) Suppose we regress X; on û; by OLS, including a constant term in the regression. Show that the estimated coefficient on û; is equal to zero. (c) Suppose we regress Y; on the predicted value Y; by OLS, including a constant term in the regression. Show that the estimated coefficient on Y; is equal to one. (Hint: the regression residual is defined by û; = Y; – Y; where the predicted value Y; = Bo + B,X;. Here, Bo and B1 are the OLS estimators.)
Q3 Part (A) Where investment (I), government expenditure (G), and gross domestic product (Y) are measured in US$ billion and ̂u is the regression residualIs there any problem of Hetroscedasticity in above model? How do you know?
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(The epidemic model) Introduce a new unknown D ('dead people') in model (1.1) (script) and derive a reasonable extension of the model. If possible, try to analyse your result in terms of nondimensionalization, steady states, existence of solutions, long-time behaviour of solutions..