Note: The two images are one question; "444" includes the question and part (a), and "4444" includes part (b). A social scientist asked a random sample of 50 students, "How many friends do you have on your favoritesocial media site, and how many of them are meaningful?" The social scientist would like to know if thereis convincing evidence of a linear relationship between the number of friends students have on theirfavorite social media site and the number of friends who are meaningful. The regression model conditionswere checked and were determined to be met. A scatterplot and computer output are shown below.Number of FriendsWho Are Meaningful25201510сл0PredictorConstantFriendsS = 0.55702004006008001,000Number of Friends on Favorite Social Media SiteCoef7.220.013R-sq = 0.9714SE Coef0.19150.000322T1,20037.70740.408R-sq (adj) = 0.9708P0.0000.000a) Using the regression output, write the equation of the least-squares regression line. Identify allvariables used in the equation. b) If a student has 400 more friends on their favorite social media site than the student's cousin, howmany additional friends are expected to mean something to that student?

Solution: Given information: n= 50 observation k= 1 independent variables

Answered: A social scientist asked a random…

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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