對(duì)2993戶居民家庭的住房面積進(jìn)行調(diào)查并進(jìn)行檢驗(yàn),結(jié)果如下表。
能否推斷所有家庭的平均面積是60平方米?您可能感興趣的試卷
你可能感興趣的試題
A.中位數(shù)檢驗(yàn)
B.曼-惠特尼U檢驗(yàn)
C.K-S檢驗(yàn)
D.Kruskal-Wallis檢驗(yàn)
E.Jonckheere-Terpstra檢驗(yàn)
A.發(fā)病率
B.性別
C.年齡段
D.居住地區(qū)
E.工作環(huán)境
A.單樣本t檢驗(yàn)是對(duì)樣本來(lái)自的總體的均值檢驗(yàn)
B.單樣本t檢驗(yàn)中要求數(shù)據(jù)只包含一個(gè)個(gè)案
C.單樣本t檢驗(yàn)要求樣本來(lái)自的總體服從或近似服從正態(tài)分布
D.單樣本t檢驗(yàn)中原假設(shè)是總體均值與檢驗(yàn)值存在顯著差異
E.單樣本t檢驗(yàn)可以對(duì)總體比例進(jìn)行檢驗(yàn)
A.反映集中趨勢(shì)的描述統(tǒng)計(jì)量
B.反映總規(guī)模總水平的描述統(tǒng)計(jì)量
C.反映離散程度的描述統(tǒng)計(jì)量
D.反映分布形態(tài)的描述統(tǒng)計(jì)量
最新試題
某班的學(xué)習(xí)按考試成績(jī)分為60分以下,60-70,70-80,80-90,90-100,這種分組()
品合格率指標(biāo)是()
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a ().
The number of class intervals in a frequency distribution is usually between ().
對(duì)全國(guó)各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查,以了解全國(guó)鐵路貨運(yùn)概況。這種調(diào)查屬于()
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
If the individual class frequency is divided by the total frequency, the result is the ().
在組距數(shù)列中,下限就是()
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()