western standard time 中文意思是什麼
western standard time
解釋
西部標準時間-
There are three time zones in australia - eastern standard time ( west ) which operates in new south wales, australian capital territory, victoria, tasmania and queensland ; central standard time ( cyst ) in south australia and northern territory ; and western standard time ( wast ) in western australia
按照氣候帶的劃分，澳大利亞的北部為熱帶，中部為遼闊的乾旱地帶，南部為溫帶。澳洲的氣候比較溫和，全年溫差不大。澳洲的四季正好與中國相反。 -
First, the standard errors computed under the assumptionthat the error term is independent identical distribution will be biased. second, theassumption of independence is unlikely to satisfied. in the panel data analysis modelwith hierarchical structure, hierarchical effects, nested effects, time effects are seted. then the dissertation deduced parameter estimation and hypothesis test statistic andits probability distribution and analyze the hierarchical panel data set : eastern china, central china and western china are the top level, and the prc ’ s province, cities, and autonomous regions are bottom level
然後針對目前面板數據分析過程中存在的兩方面問題，即一方面在利用面板數據模型進行分析時，標準誤差的計算是基於誤差項相互獨立並且同分佈的假設，如果誤差項是相關的將會造成估計有偏的後果;另一方面關于獨立性這一假設本身就難以滿足;提出多層嵌套面板數據模型，設定了層效應、嵌套效應以及時間效應參數，研究了多層嵌套模型的參數估計量和假設檢驗統計量及其分佈。
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