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【单选题】
立面图不能按 ( ) 方式命名A.
朝向
B.
轴线
C.
色彩
D.
主出入口
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反馈参考答案：
举一反三
【判断题】A summary measure that is computed from a sample to describe a characteristic of the population is called a statistic.
A.
正确
B.
错误
【单选题】A F-statistic is used to test the hypothesis that:
A.
MSE equals 0.
B.
two population variances are equal.
C.
a z-statistic is greater than 0.
D.
a z statistic less than a t statistic.
【判断题】A point estimate consists of a single sample statistic that is used to estimate the true population parameter.
A.
正确
B.
错误
【判断题】An assumption underlying the use of t -statistic in sample-based estimation is that the population is normally distributed.
A.
正确
B.
错误
【判断题】The difference between the sample statistic and actual value of the population parameter is the confidence level of the estimate.
A.
正确
B.
错误
【判断题】When a statistic calculated from sample data is used to estimate a population parameter, it is called a point estimate.
A.
正确
B.
错误
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