J 7...plz help ke answer this 1. The following equation was obtained by Ordinary Least Squares (OLS):rdintens 3.3+ 0.0030sales -0.000078sales²(0.12) (0.0019)(0.000048)n=63, R² -0.1534, (standard errors are in parenthesis)where rdintens is R&D expenditure of a company as a percent of fales and saler is the sales of productsmeasured in millions of pounds. Which of the following is TRUE?sales should not be included given 5% significance level.If sales increases by a million, the ratio of R&D expenditure to sales will increase by 0.003%If sales increases by a million, the ratio of R&D expenditure to sales will increase by 0.3%.If the variable of sales is measured in billions, it will change the estimated standard errors but not theparameters.Page 2 of 30Next Page

Given information:- rdintens^=3.3+0.0030sales-0.000078sales2 (0.12) (0.0019)…

Answered: 1. The following equation was obtained…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 32EQ

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