QUESTION 1A large discount department store chain advertises on television (X1), and on the radio (X2). A sample of12 of its stores in the certain area showed expenditures and revenues during a given month. All figuresare in thousands of dollars. The dataset is summarised below.Television| Radio advertising Television & Radio advertisingadvertising12X'X =115 119112X'X =| 68 410] (X'X) =|-0.0018105630.1098979570.000189003- 0.001625893 -0.00000012663 0.000287136647X'Y =6393647X'Y :3868[-10.11045936]YY= 39973 and b, = 1.956197151 and Ex,X, = 6547.990629999a) Interpret the given slopes.b) Use the given information to find X'Y for the two independent variables (i.e. Television & Radioadvertising).c) Regardless of the results of the overall regression significance test, test for the significance ofthe individual predictors using the partial F-test.findin

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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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A large discount department store chain advertises on television (X1), and on the radio (X2). A sample of 12 of its stores in the certain area showed expenditures and revenues during a given month. All figures are in thousands of dollars. The dataset is summarised below.