简述影响Ⅱ型错误概率大小的因素。
经研究发现,影响Ⅱ型错误概率大小的因素有:(1)是客观的真值与假设的伪值两者之间的差异。(2)a值的大小。(3)样本容量的大小。
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Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Farmers are advised to use the newly developed fertilizer to( )the soil. (rich)