Hi,

Possibly quite a simple question:

Let's assume I want to compare the GPA of three groups using an OLS. Please note, this is a simplified example, the real data has multiple control variables.
A priori, I hypothesized the following:
H1: GPA(Group B) is different from GPA(Group A)
H2: GPA(Group B) is higher than GPA(Group A)
gpa Coef. P>|t|
Class B 0,600 0,080
Class C 0,700 0,090
cons 2,200
I use an alpha of 0.05. Testing for H1 should be two sided, so I do not find support for H1 as 0.080>0.05. Testing for H2 is one sided, so I do find support for H2 as 0.045>0.05 (here I divided 0.090 by 2 as it is one sided).

First question: is my reasoning above correct?

Second question: if I would notate this in a paper with . * p<0.1, ** p<0.05, *** p<0.001 , would I notate it like this:
gpa Coef.
Class B 0,600*
Class C 0,700**
cons 2,200

Or like this:
gpa Coef.
Class B 0,600*
Class C 0,700*
cons 2,200
Again, this is a simplified example, I am aware that other tests could have been used.
THank you in advance for your help!