We want to assess the impact on the monetary economy for a company of two types of strategies (competitive strategy, cooperative strategy) adopted by buyers. Competitive strategy: strategy characterized by firm behavior aimed at obtaining concessions from the buyer. Cooperative strategy strategy focused on an attitude of negotiations oriented towards resolution problems and comprising a high level of confidence and cooperation. A random sample of 14 buyers who participated in negotiation experience where 7 Buyers adopted the competitive strategy, and the other 7, the cooperative strategy was obtained. The savings obtained for each group of buyers are presented below: Monetary economy Competitive strategy 1,932 $ 1,775 $ 1,904 $ 2,719 $ 1,641 $ 738 $ 1,787 $ Cooperative strategy 1,619 $ 2,715 $ 1,720 $ 2,350 $ 2,212 $ 2,402 $ 2,227 $ For this problem, we assume that the samples are random and come from two normal populations of unknown variances but supposedly equal. According to theory, the average economy of buyers adopting a competitive strategy will be lesser than that of buyers adopting a cooperative strategy. a) Specify the HO and H hypotheses that we want to submit to the test. Take into account the affirmation mentioned. b) Specify the conditions for applying the test. c) What statistics are suitable for this test? Explain? d) According to H, and at the threshold A = 0.05, what is the critical value? e) What decision rule should we adopt