某护士采用焦虑自评量表,对100名手术前患者进行测评。该组患者量表得分为31.63±9.21分,已知该量表的常模(正常人)得分为29.78±10.07分,请问应选择哪种统计学方法比较手术前患者与常模是否有差异 A. 卡方检验 B. 方差分析 C. 相关分析 D. t检验 题目标签:方法手术前统计学如何将EXCEL生成题库手机刷题 ...
they are rewriting the official account of history. Maybe the best way to think about Rosenzweig and Thelen’s survey is that it offered a snapshot (快照) of public habits, as those habits were about to change unavoida...