Question

2. A researcher is interested in how time spent on social media is related to self-esteem. He has participants how much time they spend on social media per day and has them take a self-esteem scale (on an 11 point scale). The data is as follows:

participants	hours per day on social media	self-esteem score
A	7	4
B	4	7
C	8	9
D	3	10
E	6	8
F	2	11
G	3	10
H	5	5

b. What are the null and research hypotheses?
c. What is the mean of X?
What is the mean of Y?
Find the deviances for both groups. (X – My) and (Y – My)
Multiply the deviances like in the lecture
Sum these.
What number do you get? ___________________________
This is the numerator
Square the deviances in X and Y
What is the Sum of Squares of X?
What is the Sum of Squares of Y?
What do you get when you multiply SSx and SSy? _______________________________
Take the square root of that ____________________________
This is your denominator
d. What is r? ______________________
e. What is the critical value? ___________________________________
f. What is your decision? _____________________________

Answer 1