【名词&注释】
统计调查(statistical survey)、居民区(populated country)、三代人、所有权主体(ownership body)、所有权。、不同于(different from)
[单选题]样本中有40%为三代人户,以95.45%(t=2)的置信度估计这个居民区中三代人户的比例区间为( )。
A. [36.73%,43.27%]
B. [36.80%,43.68%]
C. [38.40%,41.60%]
D. [38.43%,41.57%]