Because of the popularity of social media among college students, there is a great deal of interest in the relation between Facebook use and academic performance. To investigate this relation, an extensive study of over 1700 students was conducted at a public university in the northeast. For one semester the time (in minutes) spent each day on Facebook was recorded for each student. The students also agreed to allow their GPA for that semester to be used in the study. The daily mean time spent on Facebook by the students was 80 minutes with standard deviation s, 18 minutes. The semester GPA of the participating students had meanỹ 2.9 and standard deviation s, 0.8. The correlation between time spent on Facebook and GPA was r=-0.55. Question 1. Calculate the slope bi and intercept bo of the least squares prediction line 9 bo+ bax where the x-variable is time spent on Facebook and the y-variable is GPA.

Because of the popularity of social media among college students, there is a great deal of interest in the relation between Facebook use and academic performance. To investigate this relation, an extensive study of over 1700 students was conducted at a public university in the northeast. For one semester the time (in minutes) spent each day on Facebook was recorded for each student. The students also agreed to allow their GPA for that semester to be used in the study. The daily mean time spent on Facebook by the students was 80 minutes with standard deviation s, 18 minutes. The semester GPA of the participating students had meanỹ 2.9 and standard deviation s, 0.8. The correlation between time spent on Facebook and GPA was r=-0.55. Question 1. Calculate the slope bi and intercept bo of the least squares prediction line 9 bo+ bax where the x-variable is time spent on Facebook and the y-variable is GPA.

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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