判斷題進(jìn)行單樣本參數(shù)檢驗(yàn)時,要求樣本來自的總體服從或近似服從正態(tài)分布。
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最新試題
Which of the following statements is not true?()
題型:單項(xiàng)選擇題
為什么在計(jì)算平均指標(biāo)的基礎(chǔ)上還有必要進(jìn)一步計(jì)算變異指標(biāo)?
題型:問答題
The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the approximate range of the number of phone calls arriving each hour?()
題型:單項(xiàng)選擇題
Descriptive statistics deals with methods of()
題型:單項(xiàng)選擇題
變量數(shù)列中,各組頻率之和應(yīng)()
題型:單項(xiàng)選擇題
在組距數(shù)列中,下限就是()
題型:單項(xiàng)選擇題
時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
題型:問答題
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
題型:單項(xiàng)選擇題
某班的學(xué)習(xí)按考試成績分為60分以下,60-70,70-80,80-90,90-100,這種分組()
題型:多項(xiàng)選擇題
某企業(yè)的生產(chǎn)計(jì)劃完成百分比采用如下分組,請指出哪項(xiàng)是正確的()
題型:單項(xiàng)選擇題