【简答题】1-20 号同学,根据《中国统计年鉴 2014 》,查找并计算得出 2013 中国 31 个地区居民人均可支配收入 X )与人均储蓄( Y )的数据。 建立计量经济学模型,并分别作出 X - Y 图、 X - resid 图,判断其异方差的存在性。 利用 white 检验法,判断其异方差的存在性。 利用加权最小二乘法,克服异方差性。 21-45 号同学,根据《江苏统计年鉴 2017 》,查找并计算...
【简答题】A.In Frost's poem the poet describes walking on a meadow. B.In the poem the poet plans to try another after taking one way. C.The choice in the poem means the choice of his career. D.The risk of being...