= 1. Consider the hypothesis test Hoσ = sizes are n a=0.05. = 9 and n₂ = against H₁oo. Suppose that the sample 10. and the sample variances are s-2.35 and 82-4.55. Use (a) Test the hypothesis using the critical regions. (b) Construct a 95% confidence interval on 02/0 (c) Test the hypothesis by using the confidence interval constructed above.