Answer:
The t critical value at 0.05 significance level for [tex]df=n-1=17-1=16[/tex] is:
[tex]t_{critical}=\pm2.120[/tex]
Step-by-step explanation:
We are given confidence level =0.95
[tex]n=17[/tex]
Significance level = 1 - confidence level
= 1 - 0.95
= 0. 05
Degrees of freedom = n - 1 = 17 - 1 = 16
Therefore, using the t distribution table, the t critical values are:
[tex]t_{critical} = \pm 2.120[/tex]