1. Explain the following briefly with an example.

(a) Null hypothesis H0 and alternative hypothesis H1 .

(b) Non-rejection and rejection of the null hypothesis H0 .

(c) One-sided and two-sided tests.

(d) Test statistic.

(e) Type I and Type II errors.

(f) Critical value.

(g) p value.

(h) Significance level .

(i) Power of a test (1−).