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位成本指數(shù):單位成本變動影響總成本變動的絕對額(2)產(chǎn)量總指數(shù):產(chǎn)量變動影響總成本變動的絕對額。s games measures in (7576 cm) in circumference, and a women39。s cooperation with Central Asian countries, a senior official said. Shaanxi Governor Lou Qinjian said the province is fresh, rich and unique, as it was when it anchored one end of the ancient Silk Road. It is the best option for acmodating industrial transfers from East China or the world at large, he said on Wednesday in Xi39。問該廠2003年產(chǎn)品成本的變動情況如何?解:(1)城鎮(zhèn)物價指數(shù): 農(nóng)村物價指數(shù):%,%(2)產(chǎn)品成本指數(shù):,%。 A、綜合指數(shù) B、平均指數(shù) C、質(zhì)量指標指數(shù) D、數(shù)量指標指數(shù) E、平均指標指數(shù) 加權算術平均數(shù)指數(shù)是一種( BCD )。 A、反映的對象范圍不同 B、指標性質(zhì)不同 C、采用的基期不同 D、編制指數(shù)的方法不同 數(shù)量指標指數(shù)和質(zhì)量指標指數(shù)的劃分依據(jù)是 ( A )。(3)若其它條件不變,將允許誤差范圍縮小一半,應抽取多少名職工?解:1)分配數(shù)列成績工人數(shù)(頻數(shù))f各組企業(yè)數(shù)所占比重(頻率)%60以下37.560——7061570——801537.580——90123090—100410合計401002)全體職工業(yè)務考試成績的區(qū)間范圍成績組中值x工人數(shù)fXf5531659075656390253507515112584375851210208670095 4 380 36100合計40 3080 2416003)已知:(分) t = 2 (人)答:(2)根據(jù)整理后的變量數(shù)列,%。 A、樣本單位數(shù) B、樣本指標 c、全及指標 D、抽樣誤差范圍 E、抽樣估計的置信度 在抽樣平均誤差一定的條件下( A、D )。 A、擴大極限誤差范圍,可以提高推斷的可靠程度 B、擴大極限誤差范圍,會降低推斷的可靠程度 C、縮小極限誤差范圍,可以提高推斷的可靠程度 D、縮小極限誤差范圍,不改變推斷的可靠程度 反映樣本指標與總體指標之間的平均誤差程度的指標是( C )。②加權算術平均數(shù),它適用于分組的統(tǒng)計資料,如果已知各組的變量值和變量值出現(xiàn)的次數(shù),則可用加權算術平均數(shù)。 A、某地區(qū)平均每人生活費245元 B、% C、某地區(qū)糧食總產(chǎn)量4000萬噸 D、某產(chǎn)品產(chǎn)量計劃完成程度為113% E、‰ 結(jié)構(gòu)相對指標、比例相對指標和比較相對指標有什么不同的特點?請舉例說明。說明總體內(nèi)部的組成狀況,這個相對指標是比例相對指標。 單項式分組和組距式分組分別在什么情況下運用? 答:離散型變量如果變量值變動幅度較小,可依次將每個變量值作為一組。 在對工業(yè)企業(yè)生產(chǎn)設備的調(diào)查中( BCE ) A、全部工業(yè)企業(yè)是調(diào)查對象; B、工業(yè)企業(yè)的全部生產(chǎn)設備是調(diào)查對象; C、每臺生產(chǎn)設備是調(diào)查單位; D、每臺生產(chǎn)設備是填報單位; E、每個工業(yè)企業(yè)是填報單位 對連續(xù)變量與離散變量,組限的劃分在技術上有不同要求,如果對企業(yè)按工人人數(shù)分組,正確的方法應是( A ) A、300人以下,300-500人 B、300人以下,300-500人(不含300) C、300人以下,301-500人 D、300人以下,310-500人 E、299人以下,300-499人 在工業(yè)普查中( BCE )。( ) 統(tǒng)計調(diào)查過程中采用的大量觀察法,是指必須對研究對象的所有單位進行調(diào)查。 A、作用不同 B、組織方式不同 C、靈活程度不同 D、選取調(diào)查單位的方法不同 下列調(diào)查屬于不連續(xù)調(diào)查的是( A )。從而不可能經(jīng)常進行。( ) 按人口平均的糧食產(chǎn)量是一個平均數(shù)。 A、各組次數(shù)相等 B、各組變量值不等 C、變量數(shù)列為組距數(shù)列 D、各組次數(shù)都為1 E、各組次數(shù)占總次數(shù)的比重相等 中位數(shù)是(ADE )。 3). 動態(tài)相對指標(發(fā)展速度) 動態(tài)相對指標是兩個時期同一指標數(shù)值的對比,是反映現(xiàn)象發(fā)展變化程度的指標,通常用百分數(shù)或倍數(shù)表示。(√)在一定條件下,施肥量與收獲率是正相關關系。 A、抽樣指標的數(shù)值不是唯一的 B、總體指標是一個隨機變量 C、可能抽取許多個樣本 D、統(tǒng)計量是樣本變量的涵數(shù) E、全及指標又稱為統(tǒng)計量 從全及總體中抽取樣本單位的方法有(B、C )。 解:2)已知:組中值x包數(shù)fXf148.5101485149.5202990447005150.5507525151.5203030495045合計10015030 2259085 (克) (克) 2)已知:答:1)%,大于150克,所以平均重量是達到規(guī)格要求2) %%。 ( √ ) 定基發(fā)展速度等于相應各個環(huán)比發(fā)展速度的連乘積,所以定基增長速度也等于相應各個環(huán)比增長速度乘積。 A、綜合反映復雜現(xiàn)象總體數(shù)量上的變動情況 B、分析現(xiàn)象總體變動中受各個因素變動的影響 C、反映現(xiàn)象總體各單位變量分布的集中趨勢 D、反映現(xiàn)象總體的總規(guī)模水平 E、利用指數(shù)數(shù)列分析現(xiàn)象的發(fā)展趨勢 下列屬于質(zhì)量指標指數(shù)的是( CDE ) 。二者相比較有以下特點:(1)時期數(shù)列的各指標值具有連續(xù)統(tǒng)計的特點,而時點數(shù)列各指標值不具有連續(xù)統(tǒng)計的特點;(2)時期數(shù)列各指標值具有可加性的特點,而時點數(shù)列各指標值不能直接相加;(3)時期數(shù)列各指標值的大小與所包括的時間長短有直接關系,而時點數(shù)列各指標值的大小與時間間隔長短無直接關系。s ancient indigenous religion, while Du jiang yan is considered to be the oldest functioning watercontrol project in the world. Chengdu ranked third in tourist facilities, management and services among 60 Chinese cities in a customer satisfaction survey released last year. But, Li added that efforts are still needed to develop more tourism products, improve English services and provide accurate translation of traffic signs and scenic billboards. Zhao Yun, chairwoman of British Chamber of Commerce Southwest China, told China Daily that his colleagues found the policy very convenient. A British client once flew here and stayed for just one day to check her ordered goods, she said. Zhao was born in Shanxi province, but she has lived in Chengdu for more than 10 years. My life was like a running race moving from place to place. I also lived in Beijing and Shanghai before, she said. But Chengdu is a place that you never want to leave once settling down. It is now my second hometown, she said. If the environment is further improved, the city will attract more people to visit and live, with the 72hour visafree policy and pelling conditions in transportation, culture, climate and cuisine, he said. Foreigners also gave positive feedback on the policy. A spokesman from Dell Inc said the pany has a global hub of operation in Chengdu, so the threeday visa has an immediate and positive influence on the pany39。s Christian Association (YMCA), which later became Springfield College. Naismith (18611939) was a physical education teacher who was seeking a team sport with limited physical contact but a lot of running, jumping, shooting, and the handeye coordination required in handling a ball. The peach baskets he hung as goals gave the sport the name of basketball. His students were excited about the game, and Christmas vacation gave them the chance to tell their friends and people at their local YMCAs about the game. The association leaders wrote to Naismith asking for copies of the rules, and they were published in the Triangle, the school newspaper, on January 15,1892. Naismith39。 (2)一季度平均勞動生產(chǎn)率。平均數(shù)指數(shù)在什么條件下才能成為綜合指數(shù)的變形?試列式證明二者之間的關系。 A、10% B、% C、7% D、11% 根據(jù)時期數(shù)列計算序時平均數(shù)應采用( C )。解:1)已知:2)答:(1); (2)支出對于收入的回歸方程;(3)收入每增加1元,收入每增加1元。二者的聯(lián)系是:極限誤差是在抽樣平均誤差的基礎上計算得到的,即 ;二者的區(qū)別是:(1)二者涵義不同;(2)影響誤差大小的因素不同;(3)計算方法不同。如果變量x 和變量y 之間的相關系數(shù)為 1 ,說明兩變量之間( D )。 解: 根據(jù)公式: