Let 1, 2, ... be random samples from N (, 1) population. Consider the following hypotheses Ho = 2 v. s. H = 3 and the rejection region { x 2.6}. 1. For n = 15, the type-l error a is and the type-Il error Bis . (Please round to 2 significant figures.) 2. Calculate the smallest number of samples so that the type-II error is smaller than 0.05. (Hint: you need to round UP to the nearest integer.)