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ze必須符合市場(chǎng)現(xiàn)象在一定時(shí)間、地點(diǎn)、條件下的客觀實(shí)際表現(xiàn)。問(wèn)卷中的問(wèn)題不論是落后于市場(chǎng)現(xiàn)象的表現(xiàn),還是超越市場(chǎng)現(xiàn)象的現(xiàn)象,都是不符合客觀實(shí)際的,也就不會(huì)取得理想的調(diào)查效果。③問(wèn)題的選擇還必須符合被調(diào)查者回答問(wèn)題的能力和愿望。這點(diǎn)強(qiáng)調(diào)的是根據(jù)被調(diào)查者回答問(wèn)題的可能性來(lái)選擇問(wèn)題??傊瑔?wèn)題的選擇是一個(gè)關(guān)系到問(wèn)卷的質(zhì)量,關(guān)系到市場(chǎng)調(diào)查需要性和可能性有機(jī)結(jié)合的重要問(wèn)題,必須在設(shè)計(jì)問(wèn)卷中處理好。(2)設(shè)計(jì)問(wèn)題的形式:市場(chǎng)調(diào)查問(wèn)卷中的問(wèn)題有兩種基本形式,即開(kāi)放式和封閉式。開(kāi)放式問(wèn)題在提問(wèn)問(wèn)題時(shí)不提供任何答案,由被調(diào)查者根據(jù)實(shí)際情況自由填寫(xiě)。在市場(chǎng)調(diào)查中,一份調(diào)查問(wèn)卷通盤(pán)采用開(kāi)放式問(wèn)題形式是很少見(jiàn)的,一般是在調(diào)查問(wèn)卷的最后,提出幾個(gè)開(kāi)放式問(wèn)題。就市場(chǎng)現(xiàn)象來(lái)看,有許多問(wèn)題是即可用開(kāi)放式,也可用封閉式形式,也有一些問(wèn)題只適合用開(kāi)放式一種形式。對(duì)那些用兩種形式設(shè)計(jì)都可以的問(wèn)題,采用開(kāi)放式還是封閉式,主要取決于研究市場(chǎng)問(wèn)題的需要。市場(chǎng)中有些問(wèn)題只適合用開(kāi)放式提問(wèn)。封閉式問(wèn)題是現(xiàn)代問(wèn)卷調(diào)查中采用的主要問(wèn)題形式,許多市場(chǎng)現(xiàn)象的問(wèn)題都可采用封閉式。封閉式問(wèn)題的具體方式有填空式、兩項(xiàng)選擇式、多項(xiàng)選擇式、矩陣式、表格式等。總之,它們各有特點(diǎn),各有適應(yīng)的市場(chǎng)現(xiàn)象,在設(shè)計(jì)問(wèn)卷中應(yīng)根據(jù)實(shí)際情況靈活應(yīng)用。(3)問(wèn)卷設(shè)計(jì)中,不論開(kāi)放式問(wèn)題還是封閉式問(wèn)題,都要用文字表述出來(lái)。問(wèn)卷的表述與問(wèn)題 的選擇和問(wèn)題形式的設(shè)計(jì)一樣,也對(duì)問(wèn)卷的質(zhì)量、問(wèn)卷的回收率即其調(diào)查的結(jié)果有重要影響。問(wèn)卷中問(wèn)題的表述應(yīng)遵循以下規(guī)則:①每個(gè)問(wèn)題的內(nèi)容要單一,避免多重含義。這點(diǎn)強(qiáng)調(diào)的是不能在一個(gè)問(wèn)題中同時(shí)問(wèn)兩件事。②問(wèn)題的表述要具體,避免抽象、籠統(tǒng)。問(wèn)題太抽象、籠統(tǒng)也會(huì)使被調(diào)查者無(wú)從答起。在封閉式問(wèn)題中,這項(xiàng)規(guī)則比較容易實(shí)現(xiàn);但是在開(kāi)放式問(wèn)題中,往往不容易做到此規(guī)定。 ③問(wèn)題的表述語(yǔ)言要簡(jiǎn)短、通俗、準(zhǔn)確。提問(wèn)的問(wèn)句一般不易太長(zhǎng),要力求簡(jiǎn)短。因?yàn)檫^(guò)長(zhǎng)的句子在調(diào)查者設(shè)計(jì)和被調(diào)查者理解時(shí),都比較容易發(fā)生錯(cuò)誤,會(huì)直接影響調(diào)查效果。語(yǔ)言的通俗易懂可以降低被調(diào)查者的填答難度。問(wèn)題的表述還必須做到準(zhǔn)確,不能用模棱兩可和含糊不清的詞。④表述問(wèn)題要客觀,不能帶傾向性或誘導(dǎo)性。這是指問(wèn)題的表述不能使被調(diào)查者感到,調(diào)查者希望或不希望自己填答什么內(nèi)容或選擇某項(xiàng)答案,而應(yīng)由被調(diào)查者根據(jù)客觀實(shí)際情況填答。⑤對(duì)于敏感性問(wèn)題,不要直接問(wèn)題。在市場(chǎng)調(diào)查中,難免要提問(wèn)敏感性問(wèn)題。用問(wèn)卷法提問(wèn)敏感性問(wèn)題比用訪問(wèn)法的可行性要強(qiáng)一些,但在問(wèn)卷中仍然不要直接提問(wèn)敏感性問(wèn)題,要想方設(shè)法減低敏感程度和被調(diào)查者所感覺(jué)到的威脅程度。(4)問(wèn)題的設(shè)計(jì):?jiǎn)柧碇械母鲉?wèn)題之間是相互聯(lián)系的,不是孤立存在的。這里所說(shuō)的相關(guān)聯(lián)問(wèn)題是特指那種對(duì)某個(gè)問(wèn)題是否需要回答或如何回答,取決于被調(diào)查者對(duì)該問(wèn)題之前那個(gè)問(wèn)題的回答結(jié)果。即是說(shuō)問(wèn)題之間不但具有其他問(wèn)題也具有的聯(lián)系,而且還帶有問(wèn)題之間特有的邏輯性、連貫性。對(duì)相關(guān)問(wèn)題可以采用不同方式設(shè)計(jì),如用文字說(shuō)明、用框圖表示、用連線表示等。試述市場(chǎng)實(shí)驗(yàn)調(diào)查法的應(yīng)用步驟。為了保證實(shí)驗(yàn)調(diào)查法做到結(jié)果快、效果好,實(shí)驗(yàn)調(diào)查必須按科學(xué)的步驟進(jìn)行。實(shí)驗(yàn)調(diào)查一般按如下步驟開(kāi)展:(1)根據(jù)市場(chǎng)調(diào)查課題,提出研究假設(shè)。在市場(chǎng)實(shí)驗(yàn)調(diào)查之前,通過(guò)對(duì)市場(chǎng)現(xiàn)象的初步了解和理論分析,提出市場(chǎng)現(xiàn)象之間及與各種影響因素之間的因果關(guān)系假設(shè),是進(jìn)行實(shí)驗(yàn)調(diào)查的初步。通過(guò)提出研究假設(shè),才能確定實(shí)驗(yàn)對(duì)象、實(shí)驗(yàn)環(huán)境、實(shí)驗(yàn)活動(dòng)和實(shí)驗(yàn)檢測(cè)的具體內(nèi)容。提出研究假設(shè)應(yīng)該最終確定實(shí)驗(yàn)的自變量,根據(jù)研究問(wèn)題的需要和實(shí)驗(yàn)對(duì)象特點(diǎn),實(shí)驗(yàn)自變量可以是一個(gè),也可以是一個(gè)以上。(2)進(jìn)行實(shí)驗(yàn)設(shè)計(jì),確定實(shí)驗(yàn)方法。實(shí)驗(yàn)設(shè)計(jì)是指調(diào)查者如何控制實(shí)驗(yàn)對(duì)象,如何開(kāi)展實(shí)驗(yàn)活動(dòng),當(dāng)然也包括如何進(jìn)行實(shí)驗(yàn)檢測(cè)。這其中要應(yīng)用不同的試驗(yàn)方法,從而驗(yàn)證研究假設(shè),達(dá)到實(shí)驗(yàn)調(diào)查的目的。合理科學(xué)的實(shí)驗(yàn)設(shè)計(jì),是實(shí)驗(yàn)調(diào)查成功的關(guān)鍵。(3)選擇實(shí)驗(yàn)對(duì)象。實(shí)驗(yàn)調(diào)查一般是在較小范圍展開(kāi),這就必須選擇適當(dāng)?shù)膶?shí)驗(yàn)對(duì)象。根據(jù)調(diào)查課題的市場(chǎng)現(xiàn)象的特點(diǎn),用隨機(jī)抽樣方法或非隨機(jī)抽樣方法選擇實(shí)驗(yàn)對(duì)象,實(shí)際就是從市場(chǎng)調(diào)查總體中選擇調(diào)查單位。被選擇的調(diào)查單位對(duì)總體必須有較高的代表性,同時(shí)也必須考慮到實(shí)驗(yàn)活動(dòng)的方便。(4)進(jìn)行實(shí)驗(yàn)。根據(jù)實(shí)驗(yàn)設(shè)計(jì)的規(guī)定進(jìn)行實(shí)驗(yàn),包括實(shí)驗(yàn)活動(dòng)的開(kāi)展,即開(kāi)展改變市場(chǎng)現(xiàn)象所出環(huán)境的實(shí)踐活動(dòng),它是通過(guò)改變、控制實(shí)驗(yàn)自變量來(lái)實(shí)現(xiàn)的。進(jìn)行實(shí)驗(yàn)還包括對(duì)實(shí)驗(yàn)結(jié)果的認(rèn)真了解和記錄,即實(shí)驗(yàn)調(diào)查搜集資料工作。實(shí)驗(yàn)調(diào)查進(jìn)行實(shí)驗(yàn)和對(duì)實(shí)驗(yàn)結(jié)果的記錄基本上是一個(gè)統(tǒng)一的過(guò)程,它是各種搜集資料方法綜合應(yīng)用的過(guò)程。(5)整理、分析資料,做實(shí)驗(yàn)檢測(cè),得出實(shí)驗(yàn)結(jié)論。在這一步驟的工作中,要應(yīng)用各種研究問(wèn)題的方法。根據(jù)實(shí)驗(yàn)記錄資料,做實(shí)驗(yàn)檢測(cè),主要是用對(duì)比方法,觀察實(shí)驗(yàn)活動(dòng)的效果,并對(duì)其進(jìn)行數(shù)量測(cè)定。應(yīng)用統(tǒng)計(jì)分析的方法對(duì)實(shí)驗(yàn)記錄進(jìn)行整理、分析、加上理論研究方法的應(yīng)用,最終才能得出實(shí)驗(yàn)結(jié)論,寫(xiě)出實(shí)驗(yàn)調(diào)查報(bào)告。根據(jù)上述步驟進(jìn)行實(shí)驗(yàn)調(diào)查,不但保證了實(shí)驗(yàn)調(diào)查的順利進(jìn)行,同時(shí)也是認(rèn)識(shí)市場(chǎng)現(xiàn)象的客觀要求。實(shí)驗(yàn)調(diào)查的步驟,是將認(rèn)識(shí)論的一般理論與實(shí)驗(yàn)調(diào)查的具體特點(diǎn)相結(jié)合,在這種方法應(yīng)用的實(shí)踐中總結(jié)出來(lái)的。試論述市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè)的作用。(1)市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè)為制定科學(xué)的計(jì)劃和政策提供依據(jù)。我國(guó)的各項(xiàng)國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展計(jì)劃與規(guī)劃,在其制定過(guò)程中需要依據(jù)各方面的資料,其中所必需的市場(chǎng)統(tǒng)計(jì)資料和預(yù)測(cè)資料都是很重要的內(nèi)容。具體來(lái)說(shuō),一方面,國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展計(jì)劃與規(guī)劃必須依據(jù)統(tǒng)計(jì)資料,即必須根據(jù)我國(guó)過(guò)去和現(xiàn)在的各種國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展的統(tǒng)計(jì)指標(biāo),結(jié)合實(shí)際來(lái)制定計(jì)劃和規(guī)劃,否則就會(huì)脫離實(shí)際,缺少科學(xué)性和可行性。市場(chǎng)調(diào)查資料就是其中重要的資料,可以最集中地反映商品生產(chǎn)的數(shù)量、結(jié)構(gòu)和商品的供求關(guān)系等。另一方面,國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展計(jì)劃與規(guī)劃必須依據(jù)經(jīng)濟(jì)預(yù)測(cè)結(jié)果,即根據(jù)對(duì)未來(lái)一定時(shí)期經(jīng)濟(jì)情況的預(yù)計(jì)和估計(jì),來(lái)制定各項(xiàng)計(jì)劃與規(guī)劃,否則也會(huì)脫離實(shí)際,缺少科學(xué)性和可行性。(2)市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè)是管理決策和提高經(jīng)濟(jì)效益的必要條件。在社會(huì)主義市場(chǎng)經(jīng)濟(jì)中,經(jīng)濟(jì)調(diào)查與預(yù)測(cè)的主要內(nèi)容之一就是對(duì)市場(chǎng)做出科學(xué)的調(diào)查與預(yù)測(cè),這樣才能使科學(xué)的決策有根據(jù)、有基礎(chǔ),使決策取得預(yù)期的效果。同時(shí),市場(chǎng)調(diào)查與預(yù)測(cè)再提高經(jīng)濟(jì)效益方面起著重要作用,即根據(jù)市場(chǎng)調(diào)查與預(yù)測(cè)結(jié)果所進(jìn)行的商品營(yíng)銷(xiāo)活動(dòng),大大減少了盲目性,增強(qiáng)了自覺(jué)性,必然給商品營(yíng)銷(xiāo)部門(mén)或企業(yè)帶來(lái)較高的經(jīng)濟(jì)效益,也促進(jìn)了商品流通,滿(mǎn)足了消費(fèi)者的需求。(3)市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè)對(duì)社會(huì)生產(chǎn)的合理化起到了促進(jìn)作用。首先,根據(jù)城鄉(xiāng)居民的收入水平,可以調(diào)查與預(yù)測(cè)消費(fèi)品的需求總量,為生產(chǎn)城鄉(xiāng)居民消費(fèi)品的各生產(chǎn)行業(yè)提供信息、減少盲目性,提高自覺(jué)性。其次,市場(chǎng)調(diào)查與預(yù)測(cè)再基礎(chǔ)工業(yè)各部門(mén)生產(chǎn)中的作用尤其體現(xiàn)在各生產(chǎn)資料生產(chǎn)部門(mén)的聯(lián)系上、生產(chǎn)資料與生活資料生產(chǎn)部門(mén)之間的聯(lián)系上,即市場(chǎng)調(diào)查與預(yù)測(cè)不但是據(jù)頂個(gè)生產(chǎn)部門(mén)之間的聯(lián)系上,即市場(chǎng)調(diào)查與預(yù)測(cè)不但是決定各生產(chǎn)部門(mén)生產(chǎn)總量的重要依據(jù),而且是搞好生產(chǎn)部門(mén)間生產(chǎn)聯(lián)系的重要依據(jù)。(4)市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè)對(duì)促進(jìn)和滿(mǎn)足消費(fèi)者需求的顯著作用。通過(guò)市場(chǎng)調(diào)查與市場(chǎng)預(yù)測(cè),可以全面系統(tǒng)地了解需求狀況,包括需求數(shù)量、需求結(jié)構(gòu)和需求發(fā)展變化的規(guī)律等,向生產(chǎn)部門(mén)或生產(chǎn)企業(yè)提供可靠的信息,才能使消費(fèi)者個(gè)各種需求得到滿(mǎn)足,是生產(chǎn)和消費(fèi)結(jié)合得更為緊密。五、計(jì)算題 已知回歸方程yc=10+,且n=40,∑y=460,∑xy=7800,∑y2=8652,試計(jì)算估計(jì)標(biāo)準(zhǔn)誤差為多少?估計(jì)標(biāo)準(zhǔn)誤差的計(jì)算公式為:將yc=a+bx代入上式,可得: Sy=2某企業(yè)人為,某產(chǎn)品的銷(xiāo)售額(y)與推銷(xiāo)員數(shù)量x1及該產(chǎn)品所支付的廣告費(fèi)x2有關(guān),該企業(yè)1997~2001年的有關(guān)統(tǒng)計(jì)數(shù)字如下表:年份19971998199920002001銷(xiāo)售額(萬(wàn)元)158170172180188推銷(xiāo)員人數(shù)(人)910101011廣告費(fèi)(萬(wàn)元)擬合銷(xiāo)售額對(duì)推銷(xiāo)人員及廣告費(fèi)的線性回歸方程并解釋回歸系數(shù)的實(shí)際含義。(1)以推銷(xiāo)員人數(shù)x1和廣告費(fèi)x2做自變量,銷(xiāo)售額y作因變量,建立線性回歸模型:(2)計(jì)算 將以上數(shù)據(jù)代入即解得線性回歸方程為a=,b1=,b2=。某商店各個(gè)時(shí)期的商品流通費(fèi)水平和商品零售額資料如下表:商品零售額(萬(wàn)元)流通費(fèi)水平y(tǒng)(%)用水平雙曲線回歸模型預(yù)測(cè),如果下棋零售額估計(jì)為28萬(wàn)元,流通費(fèi)用水平是多少?設(shè)雙曲線回歸模型為令=,則得由最小二乘法得方程組由題中數(shù)據(jù)算得代入方程組,得解得所以回歸方程為因所以當(dāng)商品零售額為x=28萬(wàn)元時(shí),可估計(jì)流通費(fèi)水平為請(qǐng)您刪除一下內(nèi)容,O(∩_∩)O謝謝?。?!2016年中央電大期末復(fù)習(xí)考試小抄大全,電大期末考試必備小抄,電大考試必過(guò)小抄Basketball can make a true claim to being the only major sport that is an American invention. From high school to the professional level, basketball attracts a large following for live games as well as television coverage of events like the National Collegiate Athletic Association (NCAA) annual tournament and the National Basketball Association (NBA) and Women39。s National Basketball Association (WNBA) playoffs. And it has also made American heroes out of its player and coach legends like Michael Jordan, Larry Bird, Earvin Magic Johnson, Sheryl Swoopes, and other great players. At the heart of the game is the playing space and the equipment. The space is a rectangular, indoor court. The principal pieces of equipment are the two elevated baskets, one at each end (in the long direction) of the court, and the basketball itself. The ball is spherical in shape and is inflated. Basketballs range in size from in (7276 cm) in circumference, and in weight from 1822 oz (510624 g). For players below the high school level, a smaller ball is used, but the ball in men39。s games measures in (7576 cm) in circumference, and a women39。s ball is in (7274 cm) in circumference. The covering of the ball is leather, rubber, position, or synthetic, although leather covers only are dictated by rules for college play, unless the teams agree otherwise. Orange is the regulation color. At all levels of play, the home team provides the ball. Inflation of the ball is based on the height of the ball39。s bounce. Inside the covering or casing, a rubber bladder holds air. The ball must be inflated to a pressure sufficient to make it rebound to a height (measured to the top of the ball) of 4954 in ( m) when it is dropped on a solid wooden floor from a starting height of 6 ft ( m) measured from the bottom of the ball. The factory must test the balls, and the air pressure that makes the ball legal in keeping with the bounce test is stamped on the ball. During the intensity of high school and college tourneys and the professional playoffs, this inflated sphere mands considerable attention. Basketball is one of few sports with a known date of birth. On