Answered: A research has been conducted to…

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 research has been conducted to determine the factors affecting the tax return preparation period. Accordingly, Y = b₀ + b₁x1 + b₂x2 + b₃x3 + b₄x4+ ε model containing 4 independent variables was created. 40 accountants were interviewed and the following results were reached:

y = 17,2 + 3,8x1 – 1,04x2 + 2,15x3 + 15,1x4

y : Tax filing preparation time (minutes) x1: Income of individuals ($ 1000) x2: Age of individuals x3: Number of people living in the household x4: 1 if individuals are hosts, 0 if not = 5.3, = 0.13, = 0.33, = 1.51, = 4.7, R2 = 0.45.

d) Test the zero hypothesis, expressed as b1 = b2 = b3 = b4 = 0, at the level of significance α = 0.01. Interpret the results?

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