Definition:TheSampling Distribution of the Meanis the mean of the population from where the items are sampled. If the population distribution is normal, then the sampling distribution of the mean is likely to be normal for the samples of all sizes. Following are the main properties of the samp...
The sampling distribution of the sample mean is close to the normal distribution(A)only if both the original population has a normal distribution and n is large.(B) if the standard deviation of the original population is known.(C) if n is large, no matter what the distribution of the ...
A. normally distributed with mean m and variance s 2 B. normally distributed with mean m and variance s 2 . C. distributed as a t distribution with variance 1. D. normally distributed with mean 0 and variance 1 E. None of the above相关...
The mean of the sampling distribution of the mean is the mean of the population from which the scores were sampled. Therefore, if a population has a mean μ, then the mean of the sampling distribution of the mean is also μ. The symbol μM is used to refer to the mean of the ...
英文翻译:The sampling error is the difference between a sample statistic and its corresponding population parameter.2:The sampling distribution of the sample mean is a probability distribution of all possible sample means of a given sample size. 答案 1抽样误差之间的差异样本统计量及相应的人口参数2该...
Mean The mean of the sampling distribution of the mean is the mean of the population from which the scores were sampled. Variance The variance of the sampling distribution of the mean is computed as follows: The larger the sample size, the smaller the variance of the sampling distribution of...
proportion=比例 sampling distribution of the sample mean 样本均值抽样分布 样本均值的抽样分布即所有样本均值的可能取值形成的概率分布。例如，某高校大一年级参加英语四级考试的人数为6000人，为了研究这6000人的平均考分，欲从中随机抽取500人组成样本进行观察。若逐一抽取全部可能样本，并计算出每个样本的...
___:①If the population followed normal distribution, the sampling distribution of mean is followed normal distribution.②If the population do not followed normal distribution, but the sample size is larger than 30, the sampling distribution of mean is followed normal distribution. 相关知识点: 试...
The mean of the sampling distribution is the same as the probability of correctly identifying a Skittle's color, which is 17%. So, the mean here is 0.17. To find the standard deviation (which tells us how much the results might vary), we use a formula that takes in...
For the sampling distribution of sample means, what is the relationship between the population mean and the mean of all possible sample means of size 25?? They are different by one standard error of the mean.They are not equal.They are both normally distributed.They are equal. 相关知识点: ...