Assume That the Homoskedastic Normal Regression Assumption Hold $\quad n = 28,5 \%$

Essay

Assume that the homoskedastic normal regression assumption hold.Using the
Student t-distribution, find the critical value for the following situation: (a) $\quad n = 28,5 \%$ significance level, one-sided test.
(b) $\quad n = 40,1 \%$ significance level, two-sided test.
(c) $n = 10,10 \%$ significance level, one-sided test.
(d) $n = \infty , 5 \%$ significance level, two-sided test.