[单选题]某县有居民10万户，用简单随机抽样选取2000户调查得出空调普及率为65%，即该样本保有量为1300台，并且，调查样本中有100户打算今年购置空调。若要求置信度为95%，试推断该县居民家庭今年空调需求量的置信区间为（ ）。
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2023-11-01 15:09:41|
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[单选题]某县有居民10万户，用简单随机抽样选取2000户调查得出空调普及率为65%，即该样本保有量为1300台，并且，调查样本中有100户打算今年购置空调。若要求置信度为95%，试推断该县居民家庭今年空调需求量的置信区间为（ ）。
A.3500~4000
B.4040~5960
C.4000~4500
D.4000~5960
A.3500~4000
B.4040~5960
C.4000~4500
D.4000~5960
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