Question: Please look at the figure on page 421, Exercise14. (a) find the test statistic, (b) find the standardized test statistic, (c) decide whether the standardized test statistic is in the rejection region, and (d) decide whether you should reject or fail to reject the null hypothesis. Problem: Hο: µ? ≤ µ?, α= 0.01 Sample statistics: \({{\bar{X}}_{1}}\) = 45, \({{s}_{1}}\) = 4.8, \({{n}_{1}}\) = 16 and \({{\bar{X}}_{2}}\) = 50, \({{s}_{2}}\) =1.2, \({{n}_{2}}\) = 14 Assume \(\sigma _{1}^{2}\) \(\ne \) \(\sigma _{2}^{2}\)