Answer: The critical value for a two-tailed t-test = 2.056
The critical value for a one-tailed t-test = 1.706
Step-by-step explanation:
Given : Degree of freedom : df= 26
Significance level : [tex]\alpha=0.05[/tex]
Using student's t distribution table , the critical value for a two-tailed t-test will be :-
[tex]t_{\alpha/2, df}=t_{0.025,26}=2.056[/tex]
The critical value for a two-tailed t-test = 2.056
Again, Using student's t distribution table , the critical value for a one-tailed t-test will be :-
[tex]t_{\alpha, df}=t_{0.05,26}=1.706[/tex]
The critical value for a one-tailed t-test = 1.706
