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researcher was interested in the relationship between number of close friends and self-esteem. A sample of 40 participants were recruited and asked to report the number of close friends they had, as well as their level of self-esteem. The data showed a positive correlation, such that having more close friends was associated with having higher self-esteem, r(38) = .45. Here are the descriptive statistics for the two variables:   Close Friends Self-Esteem Mean 8.90 5.20 SD 3.75 2.15

researcher was interested in the relationship between number of close friends and self-esteem. A sample of 40 participants were recruited and asked to report the number of close friends they had, as well as their level of self-esteem. The data showed a positive correlation, such that having more close friends was associated with having higher self-esteem, r(38) = .45. Here are the descriptive statistics for the two variables:   Close Friends Self-Esteem Mean 8.90 5.20 SD 3.75 2.15

MATLAB: An Introduction with Applications
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 researcher was interested in the relationship between number of close friends and self-esteem. A sample of 40 participants were recruited and asked to report the number of close friends they had, as well as their level of self-esteem. The data showed a positive correlation, such that having more close friends was associated with having higher self-esteem, r(38) = .45.

Here are the descriptive statistics for the two variables:

  Close Friends Self-Esteem
Mean 8.90 5.20
SD 3.75 2.15


In a regression equation predicting self-esteem, what is the value of b?
A) 0.258
B) 0.263
C) 0.785
D) 0.573

 


In a regression equation predicting self-esteem, what is the value of a?
A) -1.787
B) 7.496
C) 2.904
D) 4.818

 

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