如果是跟统计软体有关请重发文章。 如果跟论文有关也烦请您重发文章。 请详述问题内容，以利板友帮忙解答，过短文章依板规处置，请注意。 板上大家好 想请问一题关於假设检定的问题 希望各位不吝指教( _ _ ) The winning percentage of Yankee in the last season was 0.568. The assistant manager of Yankee, John, believes that the winning percentage will be increased by recruiting 田中将大 as yankee's starting pitchers. John estimates that the improved winning percentage by addtional 15% would pay for the cost of such a recruitment. Any further increase in winning percentage would create an extra profit gain. John would like to test his belef that recruiting 田中将大 would lead to a positive effect on profit. Please answer the following questions. 1.To examine John's belief, the null hypothesis is a) Ho: p=0.568 b) Ho: p<=0.568 c) Ho: p>0.568 d) Ho: p=0.718 e) Ho: p<=0.5 2.If the winning percentage of the first season with 田中将大 serving as the starting pitcher approaches 0.680, then which alternative hypothesis should John use to test his belief? a) Ha: p>0.680 b) Ha: p/=0.680 c) Ha: p>0.718 d) Ha: p/=0.718 e) Ha: p/=0.568 我的想法是 聘请田中将大後 如果要有正的利润 至少胜率要>=0.718 (0.568+0.15) 所以Ho: p<=0.718, Ha: p>0.718 但没有这个选项... 以上 谢谢各位大神耐心看完 >< --

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