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116 23 137 33 127 4 97 14 115 24 138 34 135 5 124 15 110 25 91 35 117 6 119 16 115 26 118 36 113 7 108 17 100 27 120 37 104 8 88 18 87 28 112 38 125 9 129 19 107 29 95 39 108 10 115 20 119 30 142 40 126 要求: ( 1)對 2021 年銷售額按由低到高進行排序,求出眾數、 中位數和平均數 。 ( 2)如果按照規(guī)定,銷售額在 125 萬元以上的為先進企業(yè), 115 萬 125 萬之間的為良好企業(yè),105 萬 115 萬之間的為一般企業(yè), 105 萬以下的為落后企業(yè),請按先進企業(yè)、良好企業(yè)、一般企業(yè)、落后企業(yè)進行分組,編制頻數分布表,并計算累積頻數和累積頻率。 10.某單位為研究其商品的廣告費用( x)對其銷售量( y)的影響,收集了過去 12 年的有關數據。通過分析得到以下結果: 方差分析表 變差來源 SS df MS F Sig. 回歸 B D F 殘差 C E — — 總計 A 11 — — — 要求: ( 1)計算上面方差分析表中 A、 B、 C、 D、 E、 F處的值。 ( 2)商品銷售量的變差中有多少是由廣告費用的差異引起的? ( 3)銷售量與廣告費用之間的相關系數是多少? ,男生的平均體重為 60千克,標準差為 5千克;女生的平均體重為 50 千克,標準差為 5 千克。請問: ( 1)是男生體重差異大還是女生體重差異大?為什么? ( 2)男生中有多少比重的人體重在 55 千克 65 千克之間? ( 3)女生中有多少比重的人體重在 40 千克 60 千克之間? 12.某公司欲了解廣告費用 x對銷售量 y 的影響,收集了 16 個地區(qū)的數據,并對 x、 y 進行線性回歸分析,得到:方程的截距為 280,回歸系數為 ,回歸平方和 SSR=1503000,殘差平方和SSE=38000。要求: ( 1)寫出 廣告費用 y 與 銷售量 x 之間的線性回歸方程。 ( 2)假如廣告費用投入 80000 元,根據回歸方程估計商品的銷售量。 ( 3)計算判定系數 2R ,并解釋它的意義。 ,抽取了 450 個家庭的簡單隨機 樣本,得到樣本均值為 200升,樣本標準差為 50升。 ( 1)試用 95%的置信水平,計算該地區(qū)家庭日均用水量的置信區(qū)間。 ( 2)在所調查的 450 個家庭中,女性為戶主的為 180 個。以 95%的置信水平,計算女性為戶主的家庭比例的置信區(qū)間。 注: ? 4 種方法培育稻米,為確定哪種方法生產效率最高,隨機劃出 40塊試驗田,并指定每塊試驗田使用其中的一種方法。通過對每塊試驗田的產量進行分析得到下面的方差分析表。請完成方差分析表。 變差來源 SS df MS F Sig. 組間 320 組內 6048 — — 總計 39 — — — 請您刪除一下內容, O(∩ _∩ )O 謝謝!?。 ?China39。s 10 mustsee animations】 The Chinese animation industry has seen considerable growth in the last several years. It went through a golden age in the late 1970s and 1980s when successively brilliant animation work was produced. Here are 10 mustsee classics from China39。s animation outpouring that are not to be missed. Let39。s recall these colorful images that brought the country great joy. Calabash Brothers Calabash Brothers (Chinese: 葫蘆娃 ) is a Chinese animation TV series produced by Shanghai Animation Film Studio. In the 1980s the series was one of the most popular animations in China. It was released at a point when the Chinese animation industry was in a relatively downed state pared to the rest of the international munity. Still, the series was translated into 7 different languages. The episodes were produced with a vast amount of papercut animations. Black Cat Detective Black Cat Detective (Chinese: 黑貓警長 ) is a Chinese animation television series produced by the Shanghai Animation Film Studio. It is sometimes known as Mr. Black. The series was originally aired from 1984 to 1987. In June 2021, a rebroadcasting of the original series was announced. Critics bemoan the series39。 violence, and lack of suitability for children39。s education. Proponents of the show claim that it is merely for entertainment. Effendi Effendi, meaning sir and teacher in Turkish, is the respectful name for people who own wisdom and knowledge. The hero39。s real name was Nasreddin. He was wise and witty and, more importantly, he had the courage to resist the exploitation of noblemen. He was also full of passion and tried his best to help poor people. Adventure of Shuke and Beita【舒克與貝塔】 Adventure of Shuke and Beita (Chinese: 舒克和貝塔 ) is a classic animation by Zheng Yuanjie, who is known as King of Fairy Tales in China. Shuke and Beita are two mice who don39。t want to steal food like other mice. Shuke became a pilot and Beita became a tank driver, and the pair met accidentally and became good friends. Then they befriended a boy named Pipilu. With the help of PiPilu, they cofounded an airline named Shuke Beita Airlines to help other animals. Although there are only 13 episodes in this series, the content is very pact and attractive. The animation shows the preciousness of friendship and how people should be brave when facing difficulties. Even adults recalling this animation today can still feel touched by some scenes. Secrets of the Heavenly Book Secrets of the Heavenly Book, (Chinese: 天書奇談 ) also referred to as Legend of the Sealed Book or Tales about the Heavenly Book, was released in 1983. The film was produced with rigorous dubbing and fluid bination of music and vivid animations. The story is based on the classic literature Ping Yao Zhuan, meaning The Suppression of the D