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问题 单项选择题 A1/A2型题

在同一总体随机抽样，样本含量n固定时，α越大，用总体均数μ的可信区间估计μ，估计情况是（）

A.其精度越差

B.其精度越差

C.错的概率不变

D.错的概率越小

E.错的概率越大

答案

参考答案：E

判断题

焦炉煤气发热值高，煤气热值波动大，便于调火操作。
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问答题

Four private Enterprises A, B, C and D incorporated as a limited liability company, Yuanda Co Ltd, with a registered capital of RMB 40 million yuan. After three years’ successful business operations from 2005–2008, Yuanda Co Ltd made profits and the net assets of the company increased to RMB 60 million yuan. In January 2009, at the annual shareholders’ meeting of the company, Yuanda Co Ltd adopted a resolution for the following three items: Required: Explain whether the above resolutions (a), (b) and (c) were in conformity with the relevant provisions of the Company Law and Securities Law. NOTE: The mark allocation is shown against each resolution.

(a) On the issue of the replacement of supervisors – Mr Zhang, as appointed by Enterprise B, should replace Mr Wang (who had been appointed by Enterprise D) and Mr Lee, as the vice manager of Yuanda Co Ltd, should replace Mr Ding who was an employee of the company. (4 marks)
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