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月之流离 · 2020年02月24日

问一道题：NO.PZ2018062016000132 [ CFA I ]

  1. CFA I
  2. Quantitative

问题如下：

Claire believes that the mean price of the commercial residential building is greater than $155,000. The population standard deviation is $25,000. A random sample of 36 commercial residential buildings in the area has a mean price of $159,750. Claire conduct the hypothesis test at a 1% level of significance. The value of the calculated test statistic is closet to:

选项：

A.

1.14.

B.

0.19.

C.

1.33.

解释：

A is correct. This is a one-tailed hypothesis since the alternative hypothesis only allows values greater than the hypothesized value. z=159750-155000/(25000/6)=1.14

不会做，可否解答一下？
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1 个答案

星星_品职助教 · 2020年02月24日

同学你好，

这道题要求算出检验统计量，可以对应复习。

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