(d) If the life expectancy is increased by 4 years in a certain country, how much will the happinessindex change? Round to two decimal places.(e) Use the regression line to predict the happiness index of a country with a life expectancy of 84years. Round to two decimal places. A regression was run to determine if there is a relationship between the happiness index (y) and lifeexpectancy in years of a given country (x).The results of the regression were:-a+bxa=-0.761b-0.063(a) Write the equation of the Least Squares Regression line of the form

Provided information is ; regression line is y^ = a + b x where ; y = happiness index…

(d) If the life expectancy is increased by 4 years in a certain country, how much will the happiness index change? Round to two decimal places. (e) Use the regression line to predict the happiness index of a country with a life expectancy of 84 years. Round to two decimal places.

(d) If the life expectancy is increased by 4 years in a certain country, how much will the happiness index change? Round to two decimal places. (e) Use the regression line to predict the happiness index of a country with a life expectancy of 84 years. Round to two decimal places.

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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