Question

An independent samples t test was conducted with each sample of n = 12 (for a total of 24 participants). If the results are evaluated with a t statistic using a two-tailed test with alpha = .01, the critical value would be equal to _______.

a. t = 2.797

b. t = 2.492

c. t = 2.819

Answer 1

Option C is an absolutely accurate answer.

Option C

Explanation:-

We can by using this that is Compute alpha (α): α = 1 - (confidence level / 100)Find the critical probability (p): p= 1 - α/2

We can find out the value of probability first as we know alpha is equal to .01

So p= 1- alpha/2

As it is two tailed test here it can be treated as z

After calculating the value comes to be 2.81

Answer is 2.819

Thanks