Computing for critical values

Question

Estimate value of tcritical if i wish to run the test of acceptance analysis on a two-tailed hypothesis with a type I error rate of .1% in detecting large effects with a 90% probability of correct detection. report up to 2 decimal digits.

Answer 1

T-critical will be +/- the area in the right tail equal to 0.05 for the degrees of freedom, computed based on sample size(s).